CN105158052A - Efficient liquid sample treatment equipment - Google Patents
Efficient liquid sample treatment equipment Download PDFInfo
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- CN105158052A CN105158052A CN201510508001.1A CN201510508001A CN105158052A CN 105158052 A CN105158052 A CN 105158052A CN 201510508001 A CN201510508001 A CN 201510508001A CN 105158052 A CN105158052 A CN 105158052A
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Abstract
The invention discloses efficient liquid sample treatment equipment and aims to provide efficient liquid sample treatment equipment which is convenient to operate, high in concentration efficiency and capable of concentrating multiple extracting solution samples simultaneously. The equipment comprises a nitrogen concentration mechanism, wherein the nitrogen concentration mechanism comprises a vertical guide rod, a guide sleeve glidingly arranged on the vertical guide rod, a support plate arranged on the guide sleeve and a heating water tank with an open upper end, a limit plate is arranged on the upper end surface of the heating water tank and provided with multiple vertical limit through holes, and multiple vertical nitrogen spray pipes in one-to-one correspondence with the vertical limit through holes are arranged on the support plate.
Description
Technical field
The present invention relates to a kind of aquatic products pre-processing device, be specifically related to a kind of efficient treatment facility of fluid sample of aquatic product extract.
Background technology
Along with the raising of people's living standard, while aquatic products production and consumption output improves greatly, the quality problems of aquatic products also more and more receive publicity; How checking the quality good or not of aquatic products, is the problem that consumer pays special attention to.According to relevant alimentary codex, the requirement of Food Inspection regulation, aquatic products need by the detection of the aspects such as organoleptic examination, physical examination, chemical analysis to ensure the quality safety of aquatic products.
At present, wherein a kind of processing procedure of extract that aquatic products detect comprises the following steps: the first, by nitrogen concentrating instrument concentrated extracting solution, namely in extract, is blown into air or nitrogen concentrates extract; The second, to adding organic solvent and shake up in concentrated extract container, then filtered by filtering membrane, thus obtain the fluid sample of aquatic products detection.Extract in above-mentioned aquatic product extract processing procedure concentrates the mode adopting and be blown into air or nitrogen and carry out concentrating, and its thickening efficiency is low.On the other hand, when being filtered extract by filtering membrane, often single treatment process can only carry out filter operation to an extract sample, and this causes large batch of sample preparation in reality detects often to spend a large amount of time, and operating process is more loaded down with trivial details, waste time and energy.
Summary of the invention
The first object of the present invention is to overcome deficiency of the prior art, provide a kind of easy to operate, thickening efficiency is high, and can carry out the efficient treatment facility of the fluid sample of concentration to multiple extract sample simultaneously.
Another object of the present invention is that one is easy to operate, work efficiency is high in order to provide, and can carry out the efficient treatment facility of the fluid sample of filtration treatment to multiple extract sample simultaneously.
Technical scheme of the present invention is:
A kind of efficient treatment facility of fluid sample, comprise nitrogen and concentrate mechanism, described nitrogen concentrates mechanism and comprises vertical guide rod, slidably be arranged on the guide pin bushing on vertical guide rod, be arranged on the heating water tank of support plate on guide pin bushing and upper end open, the upper surface of described heating water tank is provided with spacing flat board, and spacing flat board is provided with some vertical limiting through hole, and described support plate is provided with some and each vertical limiting through hole vertical nitrogen sparge tube one to one.
This programme coordinates vertical nitrogen sparge tube to carry out concentration to the extract sample of aquatic products by the hot water in heating water tank simultaneously, thus effectively can improve thickening efficiency.On the other hand, concentration can also be carried out to multiple extract sample simultaneously.
As preferably, also comprise sample liquid filtration unit, described sample liquid filtration unit comprises the casing with sealed internal chamber, be arranged on the liquid sample collection device in casing and vaccum-pumping equipment, described vaccum-pumping equipment is by the inner space of vacuum lead and casing, described box top is provided with some grafting through holes, the cartridge filter of upper and lower both ends open is inserted with in each grafting through hole, sealing-plug is provided with in the upper port of cartridge filter, the bottom of cartridge filter is provided with filtering membrane interlayer, is provided with the first O-ring seal between described connection hole medial surface and cartridge filter; Described liquid sample collection device comprise be arranged on installation in casing dull and stereotyped and be arranged on install dull and stereotyped upper and with each cartridge filter liquid sample collection cylinder one to one, and liquid sample collection cylinder is positioned at below cartridge filter.This programme can carry out filtration treatment to multiple extract sample simultaneously, and it is easy to operate, work efficiency is high.
As preferably, also comprise communication type self-adaptation tight mechanism, described casing comprise upper end open box-like body and for seal hide box-like body and the case lid of upper end open, described case lid edge is provided with the annular side listrium of a circle toward downward-extension, and annular side listrium is set on box-like body;
Described communication type self-adaptation tight mechanism comprises the mounting groove be arranged on annular side listrium medial surface, is arranged on the inflation seal ring in mounting groove and pressure conversion cylinder body;
The inner chamber of described pressure conversion cylinder body is made up of the first cavity be interconnected and the second cavity, and the internal diameter of the first cavity is greater than the internal diameter of the second cavity; First piston body is provided with in described first cavity, the second piston body is provided with in second cavity, and be connected by head rod between first piston body with the second piston body, near the one end open of first piston body on described pressure conversion cylinder body, close near one end of the second piston body;
Described first inside cavities face is provided with the first limited block, and the first limited block and the second piston body are positioned at the relative both sides of first piston body, described second cavity is provided with and first piston body can be made to be resisted against the first pretension Compress Spring on the first limited block, and the first pretension Compress Spring and first piston body are positioned at the second relative both sides of piston body;
Described pressure conversion cylinder outside is provided with the first connector and the second connector, and the first connector is connected with the first cavity, and the first connector is between first piston body and the second piston body; Second connector is connected with the second cavity, and the second connector and first piston body are positioned at the second relative both sides of piston body; Described box-like body lateral surface is provided with the 3rd connector, described inflation seal ring is provided with and fills exhaust nozzle, be connected by the first connecting pipe between described first connector with the 3rd connector, described second connector is connected by the second connecting pipe with filling between exhaust nozzle.
Conveniently taken out by the liquid sample collection cylinder in casing, usual casing is all provided with a case lid; But so just need between case lid and box-like body to arrange hermetically-sealed construction, prevent ambient atmos in vacuum from entering cabinets cavity by between case lid and box-like body.Hermetically-sealed construction between current case lid and box-like body is exactly an O-ring seal usually, and due to the quality of fit problem (especially square casing) of case lid and box-like body, common O-ring seal is often difficult to form the sealing relied.On the other hand, because case lid needs frequent On/Off, this makes the O-ring seal between case lid and box-like body easily loosen, produce gap, causes ambient atmos in cabinets cavity vacuum to enter cabinets cavity, affects the filtration of sample extracting solution.In addition, because case lid needs frequent On/Off, can cause case lid cannot On/Off smoothly according to common gas-flow closure circle.This programme improves for this problem, it can not affect under the prerequisite that sample liquid filtration unit normally uses, effective solution because of the poor sealing between case lid and box-like body, and causes the negative pressure of the cavity taken out in casing not enough, affects the problem of sample separation, extraction process.
Because the pressure conversion cylinder intracoelomic cavity between first piston body and the second piston body passes through the intracavity inter-connection of the first connecting pipe and casing, and the cross-sectional area of first piston body is greater than the cross-sectional area of the second piston body; Thus the air pressure in vacuum between first piston body and the second piston body reduces, second piston body is moved toward the second limited block direction, thus in the inner chamber of gas pressure changed in cylinder body by the second connecting pipe press-in inflation seal ring, inflation seal ring is expanded, and then ensures that inflation seal ring forms sealing reliably between case lid and box-like body; And along with the negative pressure of cabinets cavity increases, air pressure in the annular inflatable inner chamber of inflation seal ring also increases thereupon, thus ensure that inflation seal ring forms sealing reliably between case lid and box-like body further, effective solution is because of the poor sealing between case lid and box-like body, and cause the negative pressure vacuumizing cavity not enough, affect the problem of sample separation, extraction process.On the other hand, after sample separation, extraction process complete, vaccum-pumping equipment is closed, now cabinets cavity pressure recover, thus first piston body and the second piston body are resetted under the effect of the first pretension Compress Spring, now inflation seal ring shrinks, thus enables case lid On/Off smoothly, and guarantee equipment normally works.
As preferably, pressure conversion cylinder outside is provided with the 4th connector be connected with the first cavity, and the 4th connector is between first piston body and the second piston body, and described 4th connector place is provided with electromagnetic switch valve; Pressure conversion cylinder outside is provided with the 5th connector be connected with the second cavity, and the 5th connector and first piston body are positioned at the second relative both sides of piston body, and described 5th connector place is provided with electromagnetic switch valve; Described box-like body lateral surface is provided with the 6th connector, and described 6th connector place is provided with electromagnetic switch valve.
As preferably, the second inside cavities face is provided with the second limited block, and the second limited block is between the second piston body and the second connector.
As preferably, cartridge filter lateral surface is positioned at above box top and is provided with cartridge filter block, and cartridge filter lower port is provided with the conical flow guiding cover that xsect reduces gradually from top to bottom.
As preferably, installing flat board is fixed in tank floor by support bar, described installation flat board is provided with some and each cartridge filter positioning through hole one to one, described liquid sample collection cylinder is plugged in positioning through hole, on liquid sample collection cylinder lateral surface and be positioned at install dull and stereotyped top face be provided with surge drum block.
As preferably, be provided with the web plate that can take out in heating water tank, web plate lower surface is provided with feet, and web plate is placed on heating water tank bottom surface by feet.
As preferably, the upper surface of heating water tank is provided with register pin, and described spacing flat board is provided with the dowel hole corresponding with register pin.
As preferably, guide pin bushing is provided with the tight fixed bolt for fixing guide pin bushing.
The invention has the beneficial effects as follows: easy to operate, thickening efficiency is high, and concentration and filtration treatment can be carried out to multiple extract sample simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the efficient treatment facility of fluid sample of the present invention.
Fig. 2 is a kind of structural representation that nitrogen of the present invention concentrates mechanism.
Fig. 3 is a kind of structural representation of sample liquid filtration unit of the present invention and communication type self-adaptation tight mechanism.
Fig. 4 is a kind of structural representation of communication type self-adaptation tight mechanism of the present invention.
In figure: nitrogen concentrates mechanism 1, vertically guide rod 11, guide pin bushing 12, tight fixed bolt 13, support plate 14, vertically nitrogen sparge tube 15, heating water tank 16, web plate 17, spacing dull and stereotyped 18, vertical limiting through hole 19;
Sample liquid filtration unit 2, box-like body 21, case lid 22, annular side listrium 22a, cartridge filter 23, sealing-plug 23a, cartridge filter block 24, filtering membrane interlayer 25, liquid sample collection cylinder 26, surge drum block 27, installation flat board 28, pump orifice 29, the 6th connector 210;
Communication type self-adaptation tight mechanism 3, inflation seal ring 31, the 3rd connector 32, first connecting pipe 33, second connecting pipe 34, pressure conversion cylinder body 35, first connector 36, second connector 37, the 5th connector 38, first pretension Compress Spring 39, second cavity 310, second limited block 311, second piston body 312, the 4th connector 313, first cavity 314, first piston body 315, first limited block 316.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1, a kind of efficient treatment facility of fluid sample comprises nitrogen and concentrates mechanism 1, sample liquid filtration unit 2 and communication type self-adaptation tight mechanism 3.
As shown in Figure 2, nitrogen concentrates mechanism and comprises vertical guide rod 11, is slidably arranged on the guide pin bushing 12 on vertical guide rod, is arranged on the heating water tank 16 of support plate 14 on guide pin bushing and upper end open.Guide pin bushing is provided with the tight fixed bolt 13 for fixing guide pin bushing.Heating arrangement and temperature-detecting device is provided with in heating water tank.The web plate 17 that can take out is provided with in heating water tank.Web plate is horizontally disposed with.Web plate lower surface is provided with feet, and web plate is placed on heating water tank bottom surface by feet.Feet is retractable supports pin.Web plate is positioned at below the water surface of heating water tank.The upper surface of heating water tank is provided with spacing dull and stereotyped 18.The upper surface of heating water tank is provided with register pin.Spacing flat board is provided with the dowel hole corresponding with register pin.Spacing flatbed horizontal is arranged.Spacing flat board is provided with some vertical limiting through hole 19.Support plate is horizontally disposed with.Support plate is provided with some and each vertical limiting through hole vertical nitrogen sparge tube 15 one to one.
As shown in Figure 3, sample liquid filtration unit comprises the casing with sealed internal chamber, is arranged on the liquid sample collection device in casing and vaccum-pumping equipment.Casing comprise upper end open box-like body 21 and for seal hide box-like body and the case lid 22 of upper end open.Case lid edge is provided with the annular side listrium 22a of a circle toward downward-extension, and annular side listrium is set on box-like body.Vaccum-pumping equipment is by the inner space of vacuum lead and casing, and specifically, box-like body lateral surface is provided with pump orifice 29, and vaccum-pumping equipment is connected with pump orifice by vacuum lead.
Box top is provided with some grafting through holes, and specifically, case lid end face is provided with some grafting through holes.Grafting through hole is vertically arranged.The cartridge filter 23 of upper and lower both ends open is inserted with in each grafting through hole.Be provided with sealing-plug 23a in the upper port of cartridge filter, and sealing-plug can take out.The bottom of cartridge filter is provided with filtering membrane interlayer 25.Cartridge filter lateral surface is positioned at above box top and is provided with cartridge filter block 24.Cartridge filter lower port is provided with the conical flow guiding cover that xsect reduces gradually from top to bottom.Connect between hole medial surface and cartridge filter and be provided with the first O-ring seal.First O-ring seal is arranged on to be connected on the medial surface of hole.
Liquid sample collection device comprise be arranged on installation in casing dull and stereotyped 28 and be arranged on install dull and stereotyped upper and with each cartridge filter liquid sample collection cylinder 26 one to one.Installation flatbed horizontal is arranged.Flat board is installed be fixed in tank floor by support bar.Flat board is installed and is provided with some and each cartridge filter positioning through hole one to one.Liquid sample collection cylinder is plugged in positioning through hole.On liquid sample collection cylinder lateral surface and be positioned at install dull and stereotyped top face be provided with surge drum block 27.Liquid sample collection cylinder is positioned at below cartridge filter.
As shown in Figure 3, Figure 4, communication type self-adaptation tight mechanism 3 comprises the mounting groove be arranged on annular side listrium medial surface, is arranged on the inflation seal ring 31 in mounting groove and pressure conversion cylinder body 35.The inner chamber of pressure conversion cylinder body is stepped.The inner chamber of pressure conversion cylinder body is made up of the first cavity 314 be interconnected and the second cavity 310, and the internal diameter of the first cavity is greater than the internal diameter of the second cavity.First piston body 315 is provided with in first cavity.Be provided with the second piston body 312 in second cavity, and be connected by head rod between first piston body with the second piston body.Near the one end open of first piston body on pressure conversion cylinder body, close near one end of the second piston body.First inside cavities face is provided with the first limited block 316, and the first limited block and the second piston body are positioned at the relative both sides of first piston body.Second inside cavities face is provided with the second limited block 311, and the second limited block is between the second piston body and the second connector.Second cavity is provided with and first piston body can be made to be resisted against the first pretension Compress Spring 39 on the first limited block, and the first pretension Compress Spring and first piston body are positioned at the second relative both sides of piston body.
Pressure conversion cylinder outside is provided with the first connector 36 and the second connector 37.First connector is connected with the first cavity, and the first connector is between first piston body and the second piston body.Second connector is connected with the second cavity, and the second connector and first piston body are positioned at the second relative both sides of piston body.Box-like body lateral surface is provided with the 3rd connector 32.Pressure conversion cylinder outside is provided with the 4th connector 313 be connected with the first cavity, and the 4th connector is between first piston body and the second piston body.4th connector place is provided with electromagnetic switch valve.Pressure conversion cylinder outside is provided with the 5th connector 38 be connected with the second cavity, and the 5th connector and first piston body are positioned at the second relative both sides of piston body.5th connector place is provided with electromagnetic switch valve.Box-like body lateral surface is provided with the 6th connector 210 with main box intracavity inter-connection.6th connector place is provided with electromagnetic switch valve.Inflation seal ring is provided with and fills exhaust nozzle.Be connected by the first connecting pipe 33 between first connector with the 3rd connector.Second connector is connected by the second connecting pipe 34 with filling between exhaust nozzle.
The specific works process of the efficient treatment facility of fluid sample of the present invention is as follows:
The first, the sample hose that aquatic product extract is housed is inserted in vertical limiting through hole, and by the lower end abutment of sample hose on web plate; Now, by the hot water of heating water tank, the aquatic product extract in sample hose is heated;
The second, the vertical nitrogen sparge tube in support plate is moved down, makes the lower end of vertical nitrogen sparge tube extend into the bottom of sample hose; Then, in extract, be blown into nitrogen or the air extract to heating by vertical nitrogen sparge tube and carry out concentration.Hot water in heating water tank coordinates vertical nitrogen sparge tube to carry out concentration to the extract sample of aquatic products simultaneously.
3rd, after completing concentration, vertical nitrogen sparge tube stops jet, and is up moved by the vertical nitrogen sparge tube in support plate; Then, toward sample hose add organic solvent and take out shake up.
4th, the sealing-plug of cartridge filter upper end is taken off, then the liquid in sample hose is poured in cartridge filter;
5th, close the electromagnetic switch valve at the 4th, the 5th and the 6th connector place, and open the inner chamber of vaccum-pumping equipment to casing and vacuumize, flow in corresponding liquid sample collection cylinder after the extract in cartridge filter is filtered by filtering membrane interlayer.
As shown in Figure 3, Figure 4, in the process that the inner chamber of vaccum-pumping equipment to casing vacuumizes, because the communication type inner chamber of cylinder block between first piston body and the second piston body passes through the intracavity inter-connection of the first connecting pipe and main box, and the cross-sectional area of first piston body is greater than the cross-sectional area of the second piston body; Thus the air pressure in vacuum between first piston body and the second piston body reduces, second piston body is moved toward the second limited block direction, thus the gas in communication type cylinder body is pressed into by the second connecting pipe in the annular inflatable inner chamber of inflation seal ring, inflation seal ring is expanded, and then ensures that inflation seal ring forms sealing reliably between case lid and box-like body.
6th, vaccum-pumping equipment is closed, opened by the electromagnetic switch valve at the 4th, the 5th and the 6th connector place simultaneously, thus first piston body and the second piston body are resetted under the effect of pretension Compress Spring, now inflation seal ring shrinks (enabling case lid On/Off smoothly); Then, liquid sample collection cylinder takes out by opening box covers.
Claims (10)
1. the efficient treatment facility of a fluid sample, it is characterized in that, comprise nitrogen and concentrate mechanism, described nitrogen concentrates mechanism and comprises vertical guide rod, slidably be arranged on the guide pin bushing on vertical guide rod, be arranged on the heating water tank of support plate on guide pin bushing and upper end open, the upper surface of described heating water tank is provided with spacing flat board, and spacing flat board is provided with some vertical limiting through hole, described support plate is provided with some and each vertical limiting through hole vertical nitrogen sparge tube one to one.
2. the efficient treatment facility of a kind of fluid sample according to claim 1, it is characterized in that, also comprise sample liquid filtration unit, described sample liquid filtration unit comprises the casing with sealed internal chamber, be arranged on the liquid sample collection device in casing and vaccum-pumping equipment, described vaccum-pumping equipment is by the inner space of vacuum lead and casing
Described box top is provided with some grafting through holes, the cartridge filter of upper and lower both ends open is inserted with in each grafting through hole, be provided with sealing-plug in the upper port of cartridge filter, the bottom of cartridge filter is provided with filtering membrane interlayer, is provided with the first O-ring seal between described connection hole medial surface and cartridge filter;
Described liquid sample collection device comprise be arranged on installation in casing dull and stereotyped and be arranged on install dull and stereotyped upper and with each cartridge filter liquid sample collection cylinder one to one, and liquid sample collection cylinder is positioned at below cartridge filter.
3. the efficient treatment facility of a kind of fluid sample according to claim 2, it is characterized in that, also comprise communication type self-adaptation tight mechanism, described casing comprise upper end open box-like body and for seal hide box-like body and the case lid of upper end open, described case lid edge is provided with the annular side listrium of a circle toward downward-extension, and annular side listrium is set on box-like body;
Described communication type self-adaptation tight mechanism comprises the mounting groove be arranged on annular side listrium medial surface, is arranged on the inflation seal ring in mounting groove and pressure conversion cylinder body;
The inner chamber of described pressure conversion cylinder body is made up of the first cavity be interconnected and the second cavity, and the internal diameter of the first cavity is greater than the internal diameter of the second cavity; First piston body is provided with in described first cavity, the second piston body is provided with in second cavity, and be connected by head rod between first piston body with the second piston body, near the one end open of first piston body on described pressure conversion cylinder body, close near one end of the second piston body;
Described first inside cavities face is provided with the first limited block, and the first limited block and the second piston body are positioned at the relative both sides of first piston body, described second cavity is provided with and first piston body can be made to be resisted against the first pretension Compress Spring on the first limited block, and the first pretension Compress Spring and first piston body are positioned at the second relative both sides of piston body;
Described pressure conversion cylinder outside is provided with the first connector and the second connector, and the first connector is connected with the first cavity, and the first connector is between first piston body and the second piston body; Second connector is connected with the second cavity, and the second connector and first piston body are positioned at the second relative both sides of piston body; Described box-like body lateral surface is provided with the 3rd connector, described inflation seal ring is provided with and fills exhaust nozzle, be connected by the first connecting pipe between described first connector with the 3rd connector, described second connector is connected by the second connecting pipe with filling between exhaust nozzle.
4. the efficient treatment facility of a kind of fluid sample according to claim 3, it is characterized in that, described pressure conversion cylinder outside is provided with the 4th connector be connected with the first cavity, and the 4th connector is between first piston body and the second piston body, described 4th connector place is provided with electromagnetic switch valve; Pressure conversion cylinder outside is provided with the 5th connector be connected with the second cavity, and the 5th connector and first piston body are positioned at the second relative both sides of piston body, and described 5th connector place is provided with electromagnetic switch valve; Described box-like body lateral surface is provided with the 6th connector, and described 6th connector place is provided with electromagnetic switch valve.
5. the efficient treatment facility of a kind of fluid sample according to claim 3 or 4, is characterized in that, described second inside cavities face is provided with the second limited block, and the second limited block is between the second piston body and the second connector.
6. the efficient treatment facility of a kind of fluid sample according to claim 2, it is characterized in that, described cartridge filter lateral surface is positioned at above box top and is provided with cartridge filter block, and cartridge filter lower port is provided with the conical flow guiding cover that xsect reduces gradually from top to bottom.
7. the efficient treatment facility of a kind of fluid sample according to claim 2, it is characterized in that, described installation flat board is fixed in tank floor by support bar, described installation flat board is provided with some and each cartridge filter positioning through hole one to one, described liquid sample collection cylinder is plugged in positioning through hole, on liquid sample collection cylinder lateral surface and be positioned at install dull and stereotyped top face be provided with surge drum block.
8. the efficient treatment facility of a kind of fluid sample according to claim 1, is characterized in that, is provided with the web plate that can take out in described heating water tank, and web plate lower surface is provided with feet, and web plate is placed on heating water tank bottom surface by feet.
9. the efficient treatment facility of a kind of fluid sample according to claim 1 or 2 or 3 or 4, it is characterized in that, the upper surface of described heating water tank is provided with register pin, and described spacing flat board is provided with the dowel hole corresponding with register pin.
10. the efficient treatment facility of a kind of fluid sample according to claim 1 or 2 or 3 or 4, it is characterized in that, described guide pin bushing is provided with the tight fixed bolt for fixing guide pin bushing.
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| CN201510508001.1A CN105158052B (en) | 2015-08-18 | 2015-08-18 | A kind of efficient process equipment of fluid sample |
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| CN201510508001.1A CN105158052B (en) | 2015-08-18 | 2015-08-18 | A kind of efficient process equipment of fluid sample |
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| CN105158052A true CN105158052A (en) | 2015-12-16 |
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| CN111766129A (en) * | 2020-06-18 | 2020-10-13 | 浙江省海洋水产研究所 | Heating and cooling device for chemical oxygen demand digestion test |
| CN112924266A (en) * | 2020-12-25 | 2021-06-08 | 湖北鼎泰高科有限公司 | Column socket of solid-phase extraction nitrogen blowing concentrator and nitrogen blowing assembly |
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