CN106213764A - The cleaning external member of a kind of shunting/Splitless injecting samples mouth and using method thereof - Google Patents
The cleaning external member of a kind of shunting/Splitless injecting samples mouth and using method thereof Download PDFInfo
- Publication number
- CN106213764A CN106213764A CN201610820626.6A CN201610820626A CN106213764A CN 106213764 A CN106213764 A CN 106213764A CN 201610820626 A CN201610820626 A CN 201610820626A CN 106213764 A CN106213764 A CN 106213764A
- Authority
- CN
- China
- Prior art keywords
- split
- component
- sample inlet
- shunt
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 229920000742 Cotton Polymers 0.000 claims abstract description 21
- 238000007598 dipping method Methods 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 5
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 34
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- 238000003466 welding Methods 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 4
- 238000002386 leaching Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000356 contaminant Substances 0.000 abstract 2
- 238000010030 laminating Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004454 trace mineral analysis Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 239000000273 veterinary drug Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/40—Other application
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to instrument maintenance instrument and application, be specifically related to cleaning external member and the using method thereof of a kind of shunting/Splitless injecting samples mouth.Cleaning external member and include assembly I and assembly II, wherein there is a groove (7) in cylinder (5) end portion of assembly II, and this groove exists the upper age of a draught animal (6) and the lower age of a draught animal (8)；Using method include injection port accessory remove, use assembly I scrub and use inside assembly II wiping injection port weldment, drip washing and drying and other steps.Assembly I of the present invention can scrub the residual contaminants inside weldment by External Force Acting, after in assembly II, the groove part of cylinder fills the absorbent cotton dipping organic solvent, can under external force can high laminating degree by thorough for residual contaminants inside weldment wiped clean, simultaneously because there is the upper and lower age of a draught animal in groove, absorbent cotton does not comes off when moving up and down inside injection port weldment, clean external member have easy and simple to handle, clean remarkable advantage thoroughly.
Description
Technical Field
The invention belongs to the field of instrument maintenance tools and application, and particularly relates to a cleaning kit for a split/non-split sample inlet and a use method thereof.
Background
The gas chromatograph and the gas chromatograph-mass spectrometer have been widely applied in various fields such as food, cosmetics, petroleum and the like due to the characteristics of high precision and good qualitative and quantitative effects, and are important means for analyzing pesticide residues, veterinary drug residues and other various harmful chemical residues.
The working principle of the gas chromatograph and the gas chromatograph-mass spectrometer is that the characteristic that a detected target object is easy to vaporize is generally utilized, the detected target object is rapidly vaporized at a split/non-split injection port, the formed gaseous detected target object is driven by carrier gas to pass through a capillary or a filling separation column to realize the separation from interfering substances, and then the gaseous detected target object reaches a detector to be detected and is converted into a recognizable chromatogram or mass spectrogram by chromatographic workstation software, so that the purposes of qualitative analysis and quantitative detection are realized.
The split/non-split sample inlet is one of the most important components for gas chromatography or gas chromatography-mass spectrometry combined analysis, and plays a crucial role in realizing trace analysis. According to statistics, the cleanliness of the split/non-split injection ports is an important factor influencing the quantitative and qualitative accuracy of the gas chromatograph and the gas chromatograph-mass spectrometer. When a split/non-split injection port is polluted, the gas chromatograph and the gas chromatograph-mass spectrometer generally have the problems of disappearance of a target peak, asymmetry or tailing of a peak shape, ghost peaks or peak splitting, poor quantitative stability of the instrument and the like. Based on the method, when the gas chromatograph and the gas chromatograph-mass spectrometer are used for trace analysis, the shunt/non-shunt injection port needs to be practically cleaned and well maintained so as to obtain accurate qualitative and quantitative effects.
In the routine maintenance of the split/non-split injection port, relevant accessories of the injection port part, such as a spacer, an O-shaped ring, a liner tube, a chromatographic column, a reducer nut and the like, can be detached, intercepted, replaced and cleaned. However, the welding part of the split/splitless sample inlet is welded on the heating module, which is not detachable and difficult to clean, thereby becoming the difficulty of maintaining and cleaning the split/splitless sample inlet.
Currently, the method of cleaning and maintaining the split/no-split injection port is usually to dip a cotton swab into an organic solvent to wipe the inner side of the split/no-split injection port weld. However, the cotton swab is smaller in inner diameter than the welding part, so that the fitting degree of the absorbent cotton and the inner side of the welding part is not high, the cotton swab can bear smaller force and is easy to break, and the like, so that the residual pollutants on the inner side of the welding part of the shunting/non-shunting injection port cannot be effectively removed by the method.
Disclosure of Invention
In order to solve the problem of difficulty in cleaning the split/non-split sample inlet at present, the invention aims to provide a cleaning kit for the split/non-split sample inlet and a use method thereof, so as to meet the aim of rapidly and completely cleaning the split/non-split sample inlet.
The invention achieves the above object by the following technical means.
A cleaning kit for a split/non-split sample inlet comprises a component I and a component II, wherein the component I consists of a ring 1, a metal rod 2 and bristles 3; the component II consists of a cylindrical handle 4 and a cylinder 5, and is characterized in that the lower end part of the cylinder 5 of the component II is provided with a groove 7, and the groove is provided with an upper tooth mouth 6 and a lower tooth mouth 8.
Wherein,
the length of the bristles on one side of the metal rod 2 in the component I is equal and is 3mm to 4 mm.
The diameter of the cylinder 5 of the component II is 5mm to 6 mm.
The use method of the cleaning kit with the flow dividing/non-flow dividing injection port comprises the following steps:
step one, preparation: disassembling the split/non-split injection port fittings such as a spacer, an O-shaped ring, a liner tube, a chromatographic column, a reducing nut and the like of the split/non-split injection port to expose the split/non-split injection port;
step two, brushing: placing a beaker at the lower end of the sample inlet, dipping methanol by using the component I, washing the inner side of the split/non-split sample inlet welding piece up and down, and repeating for 10-20 times; then dipping the acetone solvent by the component I, washing the inner side of the split-flow/non-split-flow sample inlet welding piece up and down, and repeating for 10 to 20 times;
step three, wiping: dipping absorbent cotton with methanol, filling the groove 7 of the component II, inserting the cylinder 5 of the component II into the inner side of a shunt/non-shunt sample inlet welding piece, repeatedly wiping for 10-20 times from top to bottom, and discarding the absorbent cotton; then, the absorbent cotton is dipped in acetone and then filled in the groove 7 of the component II, the cylinder 5 of the component II is inserted into the inner side of the shunt/non-shunt sample inlet welding piece, and the component II is repeatedly wiped for 10 to 20 times from top to bottom.
Step four, leaching and drying: and sequentially sucking 10-20 mL of acetone and n-hexane solvent to wash the sample injection port, and naturally volatilizing the solvent at the sample injection port until the solvent is dried.
The invention has the advantages that:
(1) the split/non-split sample inlet cleaning kit adopted by the invention has the remarkable advantages of simple and convenient operation and thorough cleaning;
(2) the length of the brush hair of the component I adopted by the invention is slightly larger than the inner diameter of a shunting/non-shunting sample inlet welding piece, and residual pollutants on the inner side of the welding piece can be cleaned under the action of external force after the organic solvent is dipped;
(3) after the groove part of the cylinder in the component II is filled with absorbent cotton dipped with organic solvent, the diameter of the cotton ring is slightly larger than the inner diameter of the shunt/non-shunt sample inlet, residual pollutants on the inner side of the welding part after being brushed by the component I can be thoroughly wiped clean under the action of external force with high fitting degree, and meanwhile, the absorbent cotton cannot fall off when moving up and down on the inner side of the welding part of the sample inlet due to the upper and lower tooth mouths 6 and 8 of the groove 7.
Drawings
FIG. 1 is a schematic diagram of component I;
FIG. 2 is a schematic view of assembly II;
fig. 3 is a schematic diagram of a split/splitless sample inlet cleaning kit.
Detailed Description
For further disclosure, but not limitation, the present invention is described in further detail below with reference to examples.
Example 1
A cleaning kit for a split/non-split sample inlet comprises a component I and a component II, wherein the component I consists of a ring 1, a metal rod 2 and bristles 3; the component II consists of a cylindrical handle 4 and a cylinder 5, and is characterized in that the lower end part of the cylinder 5 of the component II is provided with a groove 7, and the groove is provided with an upper tooth mouth 6 and a lower tooth mouth 8.
Wherein,
the length of the bristles on one side of the metal rod 2 in the component I is equal and 3 mm.
The diameter of the cylinder 5 of the component II is 5 mm.
The use method of the cleaning kit with the flow dividing/non-flow dividing injection port comprises the following steps:
step one, preparation: disassembling the split/non-split injection port fittings such as a spacer, an O-shaped ring, a liner tube, a chromatographic column, a reducing nut and the like of the split/non-split injection port to expose the split/non-split injection port;
step two, brushing: placing a beaker at the lower end of the sample inlet, dipping methanol by using the component I, washing the inner side of the split/non-split sample inlet welding piece up and down, and repeating the step 10; then, dipping the acetone solvent by using the component I, washing the inner side of the split-flow/non-split-flow sample inlet welding piece up and down, and repeating the step 10;
step three, wiping: dipping absorbent cotton with methanol, filling the groove 7 of the component II, inserting the cylinder 5 of the component II into the inner side of a shunt/non-shunt sample inlet welding piece, repeatedly wiping 10 up and down, and discarding the absorbent cotton; then, the absorbent cotton is dipped in acetone and then filled in the groove 7 of the component II, the cylinder 5 of the component II is inserted into the inner side of the shunt/non-shunt sample inlet welding piece, and the wiping is repeated for 10 times from top to bottom.
Step four, leaching and drying: and sequentially absorbing 10mL of acetone and n-hexane solvent to wash the sample inlet, and naturally volatilizing the solvent at the sample inlet until the solvent is dried.
Example 2
A cleaning kit for a split/non-split sample inlet comprises a component I and a component II, wherein the component I consists of a ring 1, a metal rod 2 and bristles 3; the component II consists of a cylindrical handle 4 and a cylinder 5, and is characterized in that the lower end part of the cylinder 5 of the component II is provided with a groove 7, and the groove is provided with an upper tooth mouth 6 and a lower tooth mouth 8.
Wherein,
the length of the bristles on one side of the metal rod 2 in the component I is equal and 4 mm.
The diameter of the cylinder 5 of the component II is 6 mm.
The use method of the cleaning kit with the flow dividing/non-flow dividing injection port comprises the following steps:
step one, preparation: disassembling the split/non-split injection port fittings such as a spacer, an O-shaped ring, a liner tube, a chromatographic column, a reducing nut and the like of the split/non-split injection port to expose the split/non-split injection port;
step two, brushing: placing a beaker at the lower end of the sample inlet, dipping methanol by using the component I, washing the inner side of the split/non-split sample inlet welding piece up and down, and repeating for 20 times; then, dipping the acetone solvent by using the component I, washing the inner side of the split-flow/non-split injection port welding piece up and down, and repeating for 20 times;
step three, wiping: dipping absorbent cotton with methanol, filling the groove 7 of the component II, inserting the cylinder 5 of the component II into the inner side of a shunt/non-shunt sample inlet welding piece, repeatedly wiping for 20 times from top to bottom, and discarding the absorbent cotton; then, the absorbent cotton is dipped in acetone and then filled in the groove 7 of the component II, the cylinder 5 of the component II is inserted into the inner side of the shunt/non-shunt sample inlet welding piece, and the cleaning is repeated for 20 times from top to bottom.
Step four, leaching and drying: and sequentially sucking 20mL of acetone and n-hexane solvent to wash the sample inlet, and naturally volatilizing the solvent at the sample inlet until the solvent is dried.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the spirit of the invention, which falls within the scope of the invention, and therefore the scope of the patent of the invention shall be governed by the appended claims.
Claims (4)
1. A cleaning kit for a split/non-split sample inlet comprises a component I and a component II, wherein the component I consists of a ring (1), a metal rod (2) and bristles (3); the component II consists of a cylindrical handle (4) and a cylinder (5), and is characterized in that a groove (7) is formed in the lower end part of the cylinder (5) of the component II, and the groove is formed in an upper tooth mouth (6) and a lower tooth mouth (8).
2. The split/splitless sample injection port cleaning kit as claimed in claim 1, wherein the length of the bristles on one side of the metal rod (2) in the assembly I is equal and 3mm to 4 mm.
3. The split/splitless sample inlet cleaning kit as claimed in claim 1, wherein the diameter of the cylinder (5) of the module II is 5mm to 6 mm.
4. According to claim 1, a method for using a split/splitless sample inlet cleaning kit comprises the following steps:
step one, preparation: removing sample inlet fittings such as a spacer, an O-shaped ring, a liner tube, a chromatographic column, a reducing nut and the like of the split/non-split sample inlet to expose the split/non-split sample inlet;
step two, brushing: placing a beaker at the lower end of the shunt/non-shunt sample inlet, dipping methanol by using the component I, washing the inner side of a shunt/non-shunt sample inlet welding piece up and down, and repeating for 10-20 times; then dipping the acetone solvent by the component I, washing the inner side of the split-flow/non-split-flow sample inlet welding piece up and down, and repeating for 10 to 20 times;
step three, wiping: dipping absorbent cotton with methanol, filling the groove (7) of the component II, inserting the cylinder (5) of the component II into the inner side of the shunt/non-shunt sample inlet welding piece, repeatedly wiping for 10-20 times from top to bottom, and discarding the absorbent cotton; then, the absorbent cotton is dipped in acetone and then filled in the groove (7) of the component II, the cylinder (5) of the component II is inserted into the inner side of the shunt/non-shunt sample inlet welding piece, and the component II is repeatedly wiped for 10 to 20 times from top to bottom.
Step four, leaching and drying: and sequentially absorbing 10mL to 20mL of acetone and n-hexane solvent to wash the shunting/non-shunting sample inlet, and naturally volatilizing the solvent at the shunting/non-shunting sample inlet until the solvent is dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610820626.6A CN106213764A (en) | 2016-09-13 | 2016-09-13 | The cleaning external member of a kind of shunting/Splitless injecting samples mouth and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610820626.6A CN106213764A (en) | 2016-09-13 | 2016-09-13 | The cleaning external member of a kind of shunting/Splitless injecting samples mouth and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106213764A true CN106213764A (en) | 2016-12-14 |
Family
ID=58074882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610820626.6A Pending CN106213764A (en) | 2016-09-13 | 2016-09-13 | The cleaning external member of a kind of shunting/Splitless injecting samples mouth and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106213764A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002086362A (en) * | 2000-09-12 | 2002-03-26 | Masao Nishiki | Cup-shaped rotary brush and its manufacturing method |
| JP2010022694A (en) * | 2008-07-23 | 2010-02-04 | Kowa Co Ltd | Brush |
| CN201415196Y (en) * | 2009-06-11 | 2010-03-03 | 张思哲 | Wiper convenient for cleaning |
| CN202891014U (en) * | 2012-10-31 | 2013-04-24 | 广东明朗生活用品制造厂有限公司 | Open-close type toilet brush seat frame |
| CN104544927A (en) * | 2013-10-25 | 2015-04-29 | 大连民族学院 | Bottle brush for chemical experiment |
-
2016
- 2016-09-13 CN CN201610820626.6A patent/CN106213764A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002086362A (en) * | 2000-09-12 | 2002-03-26 | Masao Nishiki | Cup-shaped rotary brush and its manufacturing method |
| JP2010022694A (en) * | 2008-07-23 | 2010-02-04 | Kowa Co Ltd | Brush |
| CN201415196Y (en) * | 2009-06-11 | 2010-03-03 | 张思哲 | Wiper convenient for cleaning |
| CN202891014U (en) * | 2012-10-31 | 2013-04-24 | 广东明朗生活用品制造厂有限公司 | Open-close type toilet brush seat frame |
| CN104544927A (en) * | 2013-10-25 | 2015-04-29 | 大连民族学院 | Bottle brush for chemical experiment |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20161214 |