CN112924266B - Column insert and nitrogen blowing assembly of solid phase extraction nitrogen blowing concentrator - Google Patents
Column insert and nitrogen blowing assembly of solid phase extraction nitrogen blowing concentrator Download PDFInfo
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- CN112924266B CN112924266B CN202110328620.8A CN202110328620A CN112924266B CN 112924266 B CN112924266 B CN 112924266B CN 202110328620 A CN202110328620 A CN 202110328620A CN 112924266 B CN112924266 B CN 112924266B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 374
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 187
- 238000007664 blowing Methods 0.000 title claims abstract description 154
- 238000002414 normal-phase solid-phase extraction Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000010828 elution Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 description 26
- 238000012360 testing method Methods 0.000 description 17
- 210000005056 cell body Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/405—Concentrating samples by adsorption or absorption
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4061—Solvent extraction
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a column plug and nitrogen blowing assembly of a solid-phase extraction nitrogen blowing concentrator, which comprises a base assembly, wherein a concentrated water tank is arranged above the base assembly, a nitrogen blowing lifting assembly is arranged above the concentrated water tank, a nitrogen blowing needle lifting assembly comprises an electromagnetic valve assembly, an SPE column plug assembly is arranged behind the nitrogen blowing lifting assembly, the SPE column plug assembly is provided with a spring protection mechanism, and a sample loading assembly is arranged on the right of the nitrogen blowing lifting assembly. The solid-phase extraction nitrogen blowing concentrator can realize the functions of solid-phase extraction and nitrogen blowing concentration at the same time, and the nitrogen blowing control and electromagnetic valve assembly adopts a modularized design, so that the requirements of multiple specifications of users are met, and the nitrogen blowing concentrator can be replaced quickly; the liquid level sensor is arranged in the concentration water tank, and the electromagnetic valve assembly and the liquid level sensor are combined to accurately realize quantitative concentration; the device design allows for the user to process large volumes of samples.
Description
Technical Field
The invention belongs to the field of separation, and particularly relates to a column plug and nitrogen blowing component of a solid phase extraction nitrogen blowing concentrator.
Background
Solid phase extraction is a sample pretreatment technology developed in recent years, and is mainly used for separating, purifying and enriching samples.
The main purpose of solid phase extraction is to reduce the interference of sample matrix and improve the detection sensitivity.
The current solid phase extraction instrument can finish the function of sample collection, but can not extract the sample in a large batch, if the sample needs to be processed in a large batch, repeated extraction is needed for many times, the process is tedious, manpower and material resources are wasted, and after the sample is collected, the sample needs to be transferred to a special constant volume concentrator for constant volume concentration to be suitable for a subsequent analysis instrument, and the current common constant volume concentrator is provided with a full-automatic water bath nitrogen blowing concentrator and a rotary evaporator. The constant volume concentration mode has various defects, firstly, sample loss and pollution caused by air contact easily occur in the sample transferring process; secondly, the degree of constant volume cannot be known, and the constant volume precision is rough; again, the specifications of the nitrogen blowing assembly cannot be quickly changed according to the user's requirements.
Obviously, the constant volume method easily causes that the sample is evaporated to dryness during nitrogen blowing or rotary evaporation, so that experiments are performed in white, and the open nitrogen blowing device is extremely unfavorable for the health of operators.
Disclosure of Invention
The invention aims to solve the technical problem of providing a column insert and nitrogen blowing component of a solid phase extraction nitrogen blowing concentrator, which can simultaneously realize the functions of solid phase extraction and nitrogen blowing concentration, meet the requirements of multiple specifications of users, realize the accurate realization of quantitative concentration and treat samples in a large scale.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the utility model provides a column plug and nitrogen of concentrated appearance of solid-phase extraction nitrogen blows subassembly, its includes base subassembly, base subassembly's top is provided with concentrated basin, concentrated basin's top is provided with nitrogen and blows lifting unit, nitrogen is blown lifting unit's rear is provided with SPE column plug subassembly, nitrogen is blown lifting unit's right-hand being provided with the sample subassembly, nitrogen is blown lifting unit, including nitrogen blowing needle guide rail mounting panel, nitrogen blowing needle guide rail, nitrogen blowing needle slider, nitrogen blowing needle mounting panel, nitrogen blowing needle subassembly fixed plate, nitrogen blowing needle, solenoid valve subassembly, nitrogen blowing needle guide rail mounting panel is provided with 4, nitrogen blowing needle guide rail mounting panel's lower extreme and basin apron fixed connection, nitrogen blowing needle guide rail fixedly connected with nitrogen blowing needle guide rail on the nitrogen blowing needle guide rail, nitrogen blowing needle slider with nitrogen blowing needle subassembly fixed plate's four corners fixed connection, its characterized in that: be provided with T shape recess on the nitrogen blowing needle subassembly fixed plate, nitrogen blowing needle mounting panel joint is in the T shape recess, nitrogen blowing needle sets up the below of nitrogen blowing needle mounting panel, nitrogen blowing needle the nitrogen blowing needle mounting panel solenoid valve subassembly constitutes a module, and this module can be followed nitrogen and blown lifting unit and gone up and down to be convenient for change, SPE post plug assembly includes SPE post subassembly.
Further, SPE post insert assembly 2, it includes post insert rod assembly and SPE post assembly, post insert rod assembly includes post insert rod, post insert rod mount, post insert rod slider, post insert rod guide rail, spring protection mechanism, post insert rod screw nut, post insert rod lift screw motor, SPE post assembly includes the SPE post, SPE post support deflector, SPE post guide rail, SPE post rack, SPE post support deflector mobile motor, SPE post assembly installation curb plate, fixing base on the SPE post assembly, SPE post slider, SPE post support, post insert rod mount vertical setting, vertically be provided with post insert rod guide rail on the post insert rod mount, swing joint has post insert rod slider on the post insert rod guide rail, post insert rod slider can follow post insert rod guide rail reciprocates, post insert rod slider includes post insert rod slider upper top plate and post insert rod slider lower plate, the column inserting rods vertically penetrate through an upper top plate of each column inserting rod sliding block and a lower bottom plate of each column inserting rod sliding block, a spring protection mechanism is arranged in a space between the upper top plate of each column inserting rod sliding block and the lower bottom plate of each column inserting rod sliding block, one end of each column inserting rod screw nut is connected with each column inserting rod, the other end of each column inserting rod screw nut is connected with each column inserting rod lifting screw motor, each column inserting rod lifting screw motor and each column inserting rod screw nut form a column inserting rod rotating moving pair, each column inserting rod screw nut drives each column inserting rod sliding block to move on each column inserting rod guide rail, when each column inserting rod moves to the bottommost end of an SPE column, each column inserting rod sliding block can continue to move downwards, and each column inserting rod compresses the spring protection mechanism to move upwards for a certain distance, so that the SPE column inserting rod is prevented from being damaged; the left bottom end of the column inserting rod fixing frame is fixedly connected with SPE column assembly installation side plates, the number of the SPE column assembly installation side plates is two, the two SPE column assembly installation side plates are respectively positioned at the forefront and the rearmost of the bottom ends of the column inserting rod fixing frame, the top ends of the two SPE column assembly installation side plates are horizontally provided with SPE column assembly upper fixing seats, the column inserting rod vertically passes through the SPE column assembly upper fixing seats, the SPE column support guide plate moving motor is arranged on the SPE column assembly installation side plates, the SPE column comprises an SPE column component, a fixing seat, an SPE column slide block, an SPE column guide plate, an SPE column rack and an SPE column gear, wherein the fixing seat is arranged on the SPE column component, a plurality of SPE columns are arranged on the SPE column support, the left side and the right side of the SPE column support are provided with the SPE column support guide plate, the SPE column guide plate is fixedly connected with the SPE column guide plate below, the SPE column guide plate is connected with the SPE column rack, the SPE column rack is connected with the SPE column gear, the SPE column gear is arranged on a motor shaft of the SPE column support guide plate mobile motor, and the SPE column slide block is arranged on the fixing seat on the SPE column component and is movably matched and connected with the SPE column guide plate.
Further, when the SPE post needs the back-and-forth movement, SPE post holder deflector mobile motor gives the SPE post rack provides power, SPE post rack drives the SPE post guide rail is followed the SPE post slider back-and-forth movement, thereby drives the SPE post holder moves, sets up the SPE post in the SPE post holder and realizes the back-and-forth movement.
Further, the number of the column inserting rods is two.
Further, the solenoid valve subassembly includes solenoid valve support column, solenoid valve backup pad, solenoid valve busbar board, the solenoid valve support column is fixed to be set up leftmost and the rightmost of the top of nitrogen blowing needle subassembly fixed plate, the solenoid valve support column is two the fixed solenoid valve backup pad that is provided with in top of solenoid valve support column be provided with the solenoid valve busbar board in the solenoid valve backup pad, evenly be provided with two rows of solenoid valves on the solenoid valve busbar board, every row of solenoid valve includes 12 solenoid valves.
Further, the nitrogen blowing needles are arranged in two rows.
Further, the T-shaped groove penetrates from the left side of the nitrogen blowing needle assembly fixing plate to the right side of the nitrogen blowing needle assembly fixing plate.
Further, the electromagnetic valve support columns are two.
Further, a column insert and nitrogen blowing assembly using method of a solid phase extraction nitrogen blowing concentrator comprises the following steps: firstly, adopting the subassembly that loads in to sample to SPE post insert the subassembly, the subassembly that loads in takes out the sample and annotates in the SPE post, drains the waste liquid, then adopts the SPE post to insert the subassembly and elute the SPE post, and the corresponding solvent of extraction is in the SPE post, accomplishes the elution of sample, sets up concentrated basin at last and returns to nitrogen and blows the concentration position, the SPE post inserts the subassembly and returns to waiting position, nitrogen blows the needle and descends, and water bath heating is opened, closing device after ending, nitrogen blows the needle and returns to initial position.
The beneficial effects are that: (1) In the nitrogen blowing lifting assembly, a T-shaped groove is formed in the nitrogen blowing needle assembly fixing plate, the T-shaped groove penetrates through the nitrogen blowing needle assembly fixing plate from the left side to the right side, the nitrogen blowing needle mounting plate is detachably clamped in the T-shaped groove, and the nitrogen blowing needle, the nitrogen blowing needle mounting plate and the electromagnetic valve assembly are formed into a module which can be detached from the nitrogen blowing lifting assembly, so that the nitrogen blowing lifting assembly is convenient to replace; the electromagnetic valve bus plate is provided with a plurality of electromagnetic valves, and the electromagnetic valves can be opened and closed according to the working requirements so as to meet the requirements of users.
(2) The loading needle can reciprocate and horizontal migration through power unit to can sample for multiunit test tube, the test-tube rack has two-layer baffle, and two-layer baffle has guaranteed the stability of sample tube installation, prevents sample tube slope rocks, causes the sample unstable.
(3) The space that the surface of SPE post plug-in components is located between roof and the post plug-in pole slider lower plate on every the post plug-in pole is provided with spring protection mechanism, post plug-in pole lead screw nut drive the post plug-in pole slider is in move on the post plug-in pole guide rail, works as when the post plug-in pole moves to the SPE post bottommost, the post plug-in pole slider can continue to move down, post plug-in pole compression spring protection mechanism can the one section distance of upward movement, thereby prevents the post plug-in pole damages the SPE post.
(4) The liquid level sensor is arranged in the concentration water tank, and the electromagnetic valve assembly and the liquid level sensor are combined to accurately realize quantitative concentration.
(5) The device design allows for the user to process large volumes of samples.
(6) The equipment can realize the functions of solid phase extraction and nitrogen blowing concentration at the same time.
(7) The water tank cover plate can move up and down, and when nitrogen blowing concentration is carried out, the water tank cover plate covers the water tank, so that the nitrogen blowing concentration effect is optimized.
Drawings
FIG. 1 is a schematic diagram of an overall solid phase extraction nitrogen-blown concentrator apparatus;
FIG. 2 is a schematic diagram of a loading assembly;
FIG. 3 is a schematic illustration of an SPE cartridge assembly;
FIG. 4 is a schematic diagram of a nitrogen blowing lifting assembly and a concentrated tank cover plate;
FIG. 5 is a side view of a nitrogen purge lifting assembly and a concentrate tank cover plate;
FIG. 6 is a schematic diagram of a concentrate tank;
FIG. 7 is a top view of the concentrate tank power mechanism;
FIG. 8 is a schematic diagram of a concentrate tank and concentrate tank power mechanism;
description of the reference numerals
1. Sample assembly 110, sample support 111, sample needle upper guide mounting plate 112, sample needle upper and lower guide mounting plate 113, sample needle slider 114, sample needle slider mounting plate 115, sample needle upper slider 116, sample needle upper slider mounting plate 117, sample needle upper and lower screw motor 118, Y-axis guide 119, sample needle front and rear motor 120, test tube rack bottom plate 121, test tube side plate 122, spacer 123, sample tube 124, sample needle 2, SPE cartridge assembly 210, column insert holder 211, column insert holder 212, column insert holder guide 213, column insert guide 214, spring protection mechanism 215, column insert lift screw motor 216, SPE cartridge 217, SPE cartridge guide 218, SPE cartridge guide 219, SPE cartridge rack 220, SPE cartridge guide movement motor 221, SPE cartridge. Component mounting side plate 222.SPE cartridge component upper mount 223.SPE cartridge slider 224.SPE cartridge holder 3. Nitrogen blowing lift component 310. Nitrogen blowing needle guide mounting plate 311. Nitrogen blowing needle guide 312. Nitrogen blowing needle slider 313. Nitrogen blowing needle mounting plate 314. Nitrogen blowing needle component mounting plate 315. Nitrogen blowing needle 316. Air pipe fitting 317. Solenoid valve support post 318. Solenoid valve support plate 319. Solenoid valve manifold 321. Nitrogen blowing needle lift lead screw motor 410. Water tank cover 411. Water tank cover guide shaft mounting block 412. Water tank cover guide shaft 413. Connecting tie rod 5. Concentrate tank 510. Concentrate tank body 511. Viewing window 512. Concentrate tank handle 513. Concentrate tank test tube 514. Concentrate tank heating coil 515. Waste tank 516. Level sensor 6. Support post 7. Concentrate tank handle 513. As shown in FIGS. Concentrate basin power unit 71, mobile base 72, drawer base 73, mobile base guide rail 74 concentrate basin power motor 8, bottom plate 9, top plate 10, solenoid valve access 11, base subassembly.
The invention is further described with reference to the drawings and specific examples.
Detailed Description
The invention relates to a column plug and nitrogen blowing component of a solid-phase extraction nitrogen blowing concentrator, which comprises a bottom plate 8, support columns 6 and a base component 11, wherein the base component 11 is arranged on the bottom plate 8, a concentration water tank 5 is arranged above the base component 11, a nitrogen blowing lifting component 3 is arranged above the concentration water tank 5, an SPE column plug component 2 is arranged behind the nitrogen blowing lifting component 3, a sample loading component 1 is arranged on the right side of the nitrogen blowing lifting component 3, the number of the support columns 6 is 4, the lower ends of two support columns 6 on the left side are vertically and fixedly connected with the bottom plate 8, the lower ends of the two support columns 6 on the right side are fixedly connected with a sample loading needle upper layer guide rail mounting plate 111, the sample loading assembly 1 comprises a sample loading needle upper layer guide rail mounting plate 111, a sample loading support 110 is vertically arranged at the lower end of the sample loading needle upper layer guide rail mounting plate 111, the lower end of the sample loading support 110 is fixedly connected with the bottom plate 8, the top ends of the 4 struts are connected with a top plate 9, and the top plate 9 is provided with an electromagnetic valve assembly inlet and outlet 10, and the sample loading assembly is characterized in that the nitrogen blowing lifting assembly 3 comprises a nitrogen blowing needle guide rail mounting plate 310, a nitrogen blowing needle guide rail 311, a nitrogen blowing needle sliding block 312, a nitrogen blowing needle mounting plate 313, a nitrogen blowing needle assembly fixing plate 314, a nitrogen blowing needle 315, an air pipe joint 316, an electromagnetic valve supporting column 317, an electromagnetic valve supporting plate 318, an electromagnetic valve bus plate 319, an electromagnetic valve, a nitrogen blowing needle lifting screw motor 321 and a nitrogen blowing needle lifting screw motor nut; the nitrogen blowing needle guide rail mounting plate 310 is provided with 4, the top end of the nitrogen blowing needle guide rail mounting plate 310 is fixedly connected with the top disk 9, the lower end of the nitrogen blowing needle guide rail mounting plate 310 is fixedly connected with the water tank cover plate 410, the nitrogen blowing needle guide rail mounting plate 310 is fixedly connected with the nitrogen blowing needle guide rail 311, the nitrogen blowing needle guide rail 311 is slidingly connected with the nitrogen blowing needle slide block 312, the nitrogen blowing needle slide block 312 is fixedly connected with four corners of the nitrogen blowing needle assembly fixing plate 314, the nitrogen blowing needle assembly fixing plate 314 is provided with a T-shaped groove, the T-shaped groove penetrates from the left side of the nitrogen blowing needle assembly fixing plate 314 to the right side of the nitrogen blowing needle assembly fixing plate 314, the nitrogen blowing needle mounting plate 313 is clamped in the T-shaped groove, the nitrogen blowing needle 315 is arranged below the nitrogen blowing needle mounting plate 313, the nitrogen blowing needle 315 is two rows and the electromagnetic valve assembly, the electromagnetic valve assembly comprises electromagnetic valve supporting columns 317, electromagnetic valve supporting plates 318 and electromagnetic valve confluence plates 319, wherein the electromagnetic valve supporting columns 317 are fixedly arranged at the leftmost side and the rightmost side above the nitrogen blowing needle assembly fixing plates 314, the number of the electromagnetic valve supporting columns 317 is two, the electromagnetic valve supporting plates 318 are fixedly arranged at the top ends of the electromagnetic valve supporting columns 317, the electromagnetic valve confluence plates 319 are arranged on the electromagnetic valve supporting plates 318, two rows of electromagnetic valves 320 are uniformly arranged on the electromagnetic valve confluence plates 319, each row of electromagnetic valves comprises 12 electromagnetic valves, the nitrogen blowing needles 315, the nitrogen blowing needle mounting plates 313 and the electromagnetic valve assembly are formed into a module, the module can be detached from the nitrogen blowing lifting assembly so as to be convenient to replace, the electromagnetic valve assembly inlet and outlet 10 is arranged on the top plate 9, the electromagnetic valve assembly can pass through the electromagnetic valve assembly inlet and outlet 10, the nitrogen blowing needle lifting screw motor 321 is arranged above the top disc 9, the nitrogen blowing needle lifting screw motor nut is connected with the nitrogen blowing needle sliding block 312, and the nitrogen blowing needle lifting screw motor 321 is started and drives the nitrogen blowing needle sliding block 312 to move on the nitrogen blowing needle guide rail 311. The solenoid valve manifold 319
The electromagnetic valves are arranged on the water tank, and the opening and closing of the electromagnetic valves can be selected according to the working requirements so as to meet the requirements of users.
Further, the number of the solenoid valves 320 is 24.
Further, the loading assembly 1 comprises 4 loading brackets 110, loading assembly power mechanisms, loading test tube assemblies and loading needles 124, the top surfaces of the 4 loading brackets 110 are fixedly connected with loading needle upper layer guide rail mounting plates 111, the loading assembly power mechanisms comprise loading needle upper and lower guide rail mounting plates 112, loading needle sliding blocks 113, loading needle sliding block mounting plates 114, loading needle upper sliding blocks 115, loading needle upper and lower guide rail mounting plates 116, loading needle upper and lower screw rod motors 117, screw rod motor nuts, Y-axis guide rails 118 and loading needle front and rear motors 119, the loading needle upper and lower guide rail mounting plates 112 are arranged in parallel with the loading brackets 110, upper and lower guide rails are arranged on the loading needle upper and lower guide rail mounting plates 112, the loading needle sliding blocks 113 and the upper and lower guide rails form a guide rail moving pair, the sample loading needle slider 113 is fixed with the sample loading needle slider mounting plate 114, the sample loading needle slider mounting plate 114 is arranged above the sample loading needle slider 113, the sample loading needles 124 are mounted on the sample loading needle slider mounting plate 114, two sample loading needles 124 are arranged in parallel, the sample loading needle upper slider mounting plate 116 is fixed with the top ends of the sample loading needle upper and lower guide rail mounting plates 112, the sample loading needle upper and lower screw rod motor 117 is fixed with the sample loading needle upper slider mounting plate 116, the screw rod motor nut is fixed with the sample loading needle slider mounting plate 114, the sample loading needle upper and lower screw rod motor 117 and the screw rod motor nut form a rotary moving pair, and the rotary moving pair and the guide rail moving pair are matched to form a first moving pair, so that the upper and lower movement of the sample loading needle 124 is realized; the loading needle upper slide block mounting plate 116 is fixed with the loading needle upper slide block 115, the Y-axis guide rail 118 is mounted on the loading needle upper slide block mounting plate 111, the Y-axis guide rail 118 and the loading needle upper slide block 115 form a second moving pair, a rack is arranged on the loading needle upper slide block mounting plate 111, the loading needle upper slide block 115 is connected with the rack, the rack is connected with a gear, the gear is fixed with a loading needle front-rear motor 119, the loading needle front-rear motor 119 is fixedly connected with the loading needle upper slide block mounting plate 116, and when the loading needle front-rear motor 119 rotates, the loading needle 124 realizes left-right movement.
Further, the test tube subassembly that loads samples sets up under the upper guide rail mounting panel 111 of loading needle, the test tube subassembly that loads samples includes test-tube rack and sample tube 123, the test-tube rack that loads samples includes test-tube rack bottom plate 120, sets up test-tube rack curb plate 121 of test-tube rack bottom plate 120 both sides, two be provided with two-layer baffle 122 between the test-tube rack curb plate 121, two-layer baffle 122 parallel arrangement just with test-tube rack bottom plate 120 is parallel, correspond on the two-layer baffle 122 and be provided with a plurality of sample tube and place the hole, sample tube 123 has been placed in the sample tube place the hole, and the stability of sample tube installation has been guaranteed to the two-layer baffle, prevents sample tube slope rocks, causes the sample unstable.
Further, the SPE column plug assembly 2 comprises a column plug assembly and a SPE column plug assembly, the column plug assembly comprises a column plug 210, a column plug fixing frame 211, a column plug slide 212, a column plug guide rail 213, a spring protection mechanism 214, a column plug screw nut, and a column plug lifting screw motor 215, the SPE column assembly comprises a SPE column 216, a SPE column plug guide plate 217, a SPE column guide rail 218, a SPE column rack 219, a SPE column plug guide plate moving motor 220, a SPE column assembly mounting side plate 221, a fixing seat 222 on the SPE column assembly, a SPE column slider, a SPE column plug 224, the column plug fixing frame 211 is vertically arranged, a column plug guide rail 213 is vertically arranged on the column plug fixing frame 211, a column plug slider 212 is movably connected on the column plug guide rail 213, the column plug slider 212 can move up and down along the column plug guide rail 213, the column plug slider 212 comprises a top plate and a column plug slider bottom plate, the SPE plug 210 vertically passes through the top plate and the bottom plate of the SPE plug slider, the SPE plug slider is arranged on the top plate and the bottom plate, the SPE plug slider is vertically arranged on the bottom plate of the SPE plug guide rail 212, the SPE plug guide rail is vertically arranged on the top plate and the bottom plate of the SPE plug guide rail 212, the SPE plug guide rail is continuously moves along the top plate, the top plate is connected with the top plate of the column plug guide rail 212, the top plate and the top plate of the SPE plug guide rail is rotatably, the top plate is connected with the top plate of the SPE plug guide body, the top plug guide body is continuously, and the top plug guide body is connected with the top column plug guide body and the SPE column plug guide body. The column insert 210 compresses the spring protection mechanism to move upward a distance to prevent the column insert 210 from damaging the SPE column; the left side bottom fixedly connected with SPE post subassembly installation curb plate 221 of post cartridge holder 211, SPE post subassembly installation curb plate 221 is two, two SPE post subassembly installation curb plate 221 is located respectively the forefront and the rearmost of the bottom of post cartridge holder 211, two the top level of SPE post subassembly installation curb plate 221 is provided with fixing base 222 on the SPE post subassembly, the post cartridge 210 is vertical to pass fixing base 222 on the SPE post subassembly, SPE post guide plate mobile motor 220 sets up on the SPE post subassembly installation curb plate 221 the below of fixing base 222 is provided with on the SPE post subassembly be provided with a plurality of SPE post 216 on the SPE post 224 left and right sides is provided with SPE post guide plate 217 SPE post guide plate 218, SPE post guide 218 is connected with SPE post 219, SPE post 219 and SPE post pinion connection, SPE post pinion installs on the SPE post motor shaft guide plate mobile motor 220 the SPE post support 218 is provided with SPE post guide plate 219, and SPE post support guide plate 219 is carried in the SPE post guide plate is carried in the SPE post support guide plate 224.
Further, a sink cover 410, a sink cover guide shaft mounting block 411, a sink cover guide shaft 412, and a connecting tie rod 413; the utility model provides a nitrogen blowing needle guide rail mounting plate, including basin apron guiding axle mounting block 411, basin apron guiding axle mounting block 411 has four, basin apron guiding axle mounting block 411 with nitrogen blows the lower extreme fixed connection of nitrogen blowing needle guide rail mounting plate 310, basin apron guiding axle 412 one end and basin apron guiding axle mounting block 411 fixed connection, the basin apron guiding axle 412 other end is connected with basin apron 410, connect pull rod 413 one end perpendicular pass nitrogen blowing needle subassembly fixed plate 314, connect the pull rod 413 other end perpendicular fixation on basin apron 410, connect the pull rod 413 to be located the top of nitrogen blowing needle subassembly fixed plate 314 has the connection pull rod nut, be provided with the boss on the connection pull rod nut, the boss can with the setting that connects pull rod 413 passed is in the downthehole connecting piece cooperation connection on nitrogen blowing needle subassembly fixed plate 314, thereby make nitrogen blowing needle subassembly fixed plate 314 can drive when upwards moving, connect pull rod 413 upwards movement drive basin apron 410 upwards movement, the basin apron can be under the effect of connecting pull rod 314 and can be by means of connecting the pull rod 314 and can blow needle subassembly under the effect under the dead weight of connecting the pull rod 314 and can blow needle subassembly under the dead weight of the dead-weight and move to the connecting plate 410.
Further, concentrate basin 5, including concentrate basin cell body 510, observation window 511, concentrate basin handle 512, one side of concentrate basin cell body 510 is provided with observation window 511, the upper end of observation window 511 is provided with concentrate basin handle 512, the upper end opening of concentrate basin cell body 510, be provided with two concentrated basin test tube groups in the concentrate basin cell body 510, every concentrated basin test tube group of being provided with 12 concentrate basin test tubes 513 the lower part of concentrate basin test tube 513 is provided with concentrate basin heating coil 514 one side of concentrate basin cell body 510 is provided with waste liquid groove 515 the inside of concentrate basin is provided with level sensor 516, concentrate basin test tube 513 one end opening. The other end of the concentrated water tank test tube 513 is a contracted thin tube, one end of the contracted thin tube of the concentrated water tank test tube 513 passes through the liquid level sensor 516, and the liquid level sensor 516 is used for detecting the liquid level in the concentrated water tank test tube 513.
Further, the concentrated water tank power mechanism 7 comprises a movable base 71, a drawer base 72, a drawer base guide rail, a movable base guide rail 73, a drawer base slider and a movable base slider, wherein the drawer base is positioned below the concentrated water tank, the drawer base guide rail is fixed on the drawer base, the movable base 71 is positioned below the drawer base 72, the drawer base slider is arranged above the movable base 71, the drawer base slider is slidably connected with the drawer base guide rail, a user pulls the concentrated water tank handle 512, the drawer base guide rail can slide on the drawer base slider so as to pull out the concentrated water tank, the concentrated water tank test tube 513 is conveniently placed in the concentrated water tank, the lower end surface of the movable base is provided with the movable base slider, the movable base guide rail 73 is arranged on the bottom plate 8, the movable base slider can move on the movable base guide rail 73, the movable base slider comprises a concentrated water tank power motor 74, the concentrated water tank power motor 74 provides power for the movable base slider, and the movable base slider is driven to move on the movable base guide rail 73, so that the concentrated water tank can be moved according to the needs of the user.
The sample loading assembly is used for loading samples to the SPE column inserting assembly, the sample loading assembly pumps and injects the samples into the SPE column, waste liquid is discharged, then the SPE column inserting assembly 2 is used for eluting the SPE column, corresponding solvents are extracted into the SPE column, elution of the samples is completed, a concentrated water tank is finally set to a nitrogen blowing concentration position, the SPE column inserting assembly 2 is retreated to a waiting position, a nitrogen blowing needle 315 slowly descends, the water tank cover plate 410 covers the concentrated water tank along with the downward movement of the nitrogen blowing needle 315, a concentrated water tank heating coil 514 in the concentrated water tank heats water in the water tank, the liquid level is continuously reduced downwards, the liquid level is lower than the sensing height sensed by a liquid level sensor 516 along with the concentration water tank test tube 513, signals are transmitted to a controller, the on-off of the nitrogen blowing needle is controlled through a switch electromagnetic valve group, when the liquid level is lowered to the sensing position of the liquid level sensor, the nitrogen blowing needle is closed, and the nitrogen blowing needle returns to the initial position.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present invention or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, which are also within the scope of the present invention.
Claims (8)
1. The utility model provides a column plug and nitrogen of solid-phase extraction nitrogen blows concentrator blows subassembly, its includes base subassembly (11), the top of base subassembly (11) is provided with concentrated basin (5), the top of concentrated basin (5) is provided with nitrogen and blows lifting unit (3), the rear of nitrogen and blow lifting unit (3) is provided with SPE column plug subassembly (2), the right-hand sample subassembly (1) that is provided with of nitrogen and blows lifting unit (3), nitrogen blows lifting unit (3), including nitrogen blow needle guide rail mounting panel (310), nitrogen blow needle guide rail (311), nitrogen blow needle slider (312), nitrogen blow needle mounting panel (313), nitrogen blow needle subassembly fixed plate (314), nitrogen blow needle (315), solenoid valve subassembly, nitrogen blow needle guide rail mounting panel (310) are provided with 4, nitrogen blow needle guide rail mounting panel (310) are last fixedly connected with nitrogen and blow needle guide rail (311), nitrogen blow needle guide rail (311) are last sliding connection has nitrogen needle slider (312), nitrogen blow needle subassembly (314) and nitrogen fixed connection four corners, nitrogen blow needle subassembly (312). The nitrogen blowing needle assembly fixing plate (314) is provided with a T-shaped groove, the nitrogen blowing needle mounting plate (313) is clamped in the T-shaped groove, the nitrogen blowing needle (315) is arranged below the nitrogen blowing needle mounting plate (313), the nitrogen blowing needle (315), the nitrogen blowing needle mounting plate (313) and the electromagnetic valve assembly form a module, the module can be detached from the nitrogen blowing lifting assembly, so that the nitrogen blowing needle assembly is convenient to replace, and the SPE column plug assembly (2) comprises an SPE column assembly;
a sink cover (410), a sink cover guide shaft mounting block (411), a sink cover guide shaft (412), and a connecting rod (413); the utility model discloses a nitrogen blowing needle assembly fixing plate, including a trough cover plate guide shaft mounting block (411), trough cover plate guide shaft mounting block (411) and nitrogen are blown the lower extreme fixed connection of nitrogen blowing needle guide rail mounting plate (310), trough cover plate guide shaft (412) one end and trough cover plate guide shaft mounting block (411) fixed connection, trough cover plate guide shaft (412) other end and trough cover plate (410) are connected, connecting pull rod (413) one end vertically passes nitrogen blowing needle assembly fixed plate (314), connecting pull rod (413) other end is fixed perpendicularly on trough cover plate (410), connecting pull rod (413) are located the top of nitrogen blowing needle assembly fixed plate (314) has connecting pull rod nut, be provided with the boss on the connecting pull rod nut, the boss can with connecting pull rod (413) pass the downthehole connecting piece cooperation of setting on nitrogen blowing needle assembly fixed plate (314), thereby make nitrogen blowing needle assembly fixed plate (314) can drive connecting pull rod (413) when upwards moving, connecting pull rod (314) upwards and can be connected with the connecting needle assembly (314) and can be connected with the fixed connection needle assembly (314) and can be separated upwards by the connecting pull rod (314) and the upward movement of connecting needle assembly (314), the sink cover (410) is capable of moving downwardly by its own weight;
PE post cartridge (2), it includes post cartridge and SPE post cartridge, post cartridge includes post cartridge (210), post cartridge mount (211), post cartridge slider (212), post cartridge guide rail (213), spring protection mechanism (214), post cartridge lead screw nut, post cartridge lift lead screw motor (215), SPE post cartridge includes SPE post 216), SPE post cartridge deflector (217), SPE post guide rail (218), SPE post rack (219), post cartridge deflector mobile motor (220), SPE post cartridge installation curb plate (221), fixing base (222) on the SPE post cartridge, SPE post slider, SPE post cartridge (224), post cartridge mount (211) vertical setting, vertical being provided with post cartridge guide rail (213) on post cartridge mount (211), swing joint has post cartridge slider (212) on post cartridge guide rail (213), post cartridge slider (212) can reciprocate along post cartridge guide rail (213), post cartridge slider (212) include post slider and SPE cartridge slider (219), install in the top plate (210) under the top plate (210) is located in the top plate and is connected with the top plate (210) under the top plate of the top plate, the top plate is installed to the top plate (210) is installed down in the top plate of post cartridge, the top plate is installed with the top plate (210) is installed down, the other end of the column inserting rod screw nut is connected with the column inserting rod lifting screw motor (215), the column inserting rod lifting screw motor (215) and the column inserting rod screw nut form a column inserting rod rotating moving pair, the column inserting rod screw nut drives the column inserting rod sliding block (212) to move on the column inserting rod guide rail (213), when the column inserting rod (210) moves to the bottommost end of an SPE column, the column inserting rod sliding block (212) can continuously move downwards, the column inserting rod (210) compresses the spring protection mechanism and can move upwards for a certain distance, and therefore the column inserting rod (210) is prevented from damaging the SPE column; the left bottom end of the column inserting rod fixing frame (211) is fixedly connected with SPE column assembly installation side plates (221), the number of the SPE column assembly installation side plates (221) is two, the two SPE column assembly installation side plates (221) are respectively positioned at the forefront and the rearmost of the bottom ends of the column inserting rod fixing frame (211), SPE column assembly upper fixing seats (222) are horizontally arranged at the top ends of the two SPE column assembly installation side plates (221), the column inserting rods (210) vertically penetrate through the SPE column assembly upper fixing seats (222), an SPE column assembly guide plate moving motor (220) is arranged on the SPE column assembly installation side plates (221), the SPE column assembly comprises a SPE column assembly body, and is characterized in that a fixed seat (222) is arranged below the SPE column assembly body, a plurality of SPE columns (216) are arranged on a SPE column support (224), SPE column support guide plates (217) are arranged on the left side and the right side of the SPE column support (224), SPE column guide plates (218) are fixedly connected below the SPE column support guide plates (217), the SPE column guide plates (218) are connected with a SPE column rack (219), the SPE column rack (219) is connected with a SPE column gear, the SPE column gear is installed on a motor shaft of a SPE column support guide plate moving motor (220), SPE column sliding blocks (223) are installed on the SPE column assembly body, and the SPE column sliding blocks (223) are movably matched and connected with the SPE column guide plates (218).
2. The column insert and nitrogen blowing assembly of a solid phase extraction nitrogen blowing concentrator of claim 1, wherein: when the SPE column (216) needs to move back and forth, the SPE column support guide plate moving motor (220) provides power for the SPE column rack (219), the SPE column rack (219) drives the SPE column guide rail (218) to move back and forth along the SPE column sliding block (223), so as to drive the SPE column support (224) to move, and the SPE column arranged in the SPE column support (224) realizes the back and forth movement.
3. The column insert and nitrogen blowing assembly of a solid phase extraction nitrogen blowing concentrator of claim 2, wherein: the number of the column inserting rods (210) is two.
4. The column insert and nitrogen blowing assembly of a solid phase extraction nitrogen blowing concentrator of claim 1, wherein: the utility model provides a nitrogen blowing needle subassembly fixed plate (314) is fixed including solenoid valve support column (317), solenoid valve backup pad (318), solenoid valve busbar board (319), solenoid valve support column (317) are fixed to be set up leftmost and rightmost of top, solenoid valve support column (317) are two solenoid valve support column (317) the top of solenoid valve support column (317) is fixed to be provided with solenoid valve backup pad (318) be provided with solenoid valve busbar board (319) in solenoid valve backup pad (318), evenly be provided with two rows solenoid valve (320) on solenoid valve busbar board (319), every row solenoid valve includes 12 solenoid valves.
5. The column insert and nitrogen blowing assembly of a solid phase extraction nitrogen blowing concentrator of claim 1, wherein: the nitrogen blowing needles (315) are arranged in two rows.
6. The column insert and nitrogen blowing assembly of a solid phase extraction nitrogen blowing concentrator of claim 1, wherein: the T-shaped groove extends from the left side of the nitrogen blowing needle assembly fixing plate (314) to the right side thereof.
7. The column insert and nitrogen blowing assembly of the solid phase extraction nitrogen blowing concentrator of claim 4, wherein: the number of the electromagnetic valve support columns (317) is two.
8. The method for using the column insert and nitrogen blowing assembly of the solid phase extraction nitrogen blowing concentrator of claim 1, comprising the following steps: firstly, sample loading is carried out on an SPE column inserting component (2) by adopting a sample loading component (1), the sample loading component (1) pumps and injects a sample into the SPE column, waste liquid is discharged, then the SPE column inserting component (2) is adopted to elute the SPE column, corresponding solvents are extracted into the SPE column, elution of the sample is completed, a concentrated water tank is finally arranged to return to a nitrogen blowing concentration position, the SPE column inserting component (2) returns to a waiting position, a nitrogen blowing needle descends, water bath heating is started, a device is closed after the nitrogen blowing needle returns to an initial position.
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| CN202011563346 | 2020-12-25 | ||
| CN2020115633464 | 2020-12-25 |
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| CN112924266B true CN112924266B (en) | 2024-01-19 |
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| CN202110328620.8A Active CN112924266B (en) | 2020-12-25 | 2021-03-26 | Column insert and nitrogen blowing assembly of solid phase extraction nitrogen blowing concentrator |
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