CN202599919U - Pretreatment device of pesticide residue detection - Google Patents
Pretreatment device of pesticide residue detection Download PDFInfo
- Publication number
- CN202599919U CN202599919U CN 201220231133 CN201220231133U CN202599919U CN 202599919 U CN202599919 U CN 202599919U CN 201220231133 CN201220231133 CN 201220231133 CN 201220231133 U CN201220231133 U CN 201220231133U CN 202599919 U CN202599919 U CN 202599919U
- Authority
- CN
- China
- Prior art keywords
- glass
- pesticide residue
- residue detection
- flask
- grournd
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a pretreatment device of pesticide residue detection. The pretreatment device comprises a glass column device, a stand table, a solid phase extraction column and a ground glass flask, wherein the stand table is provided with the glass column device and the ground glass flask; a bottle jack of the ground glass flask is hermetically butted with a ground glass port at the lower end of the glass column device; an inlet at the upper end of the glass column device is connected with a polytetrafluoroethylene helical port; the upper end of the polytetrafluoroethylene helical port is connected with the solid phase extraction column; the lower end of the polytetrafluoroethylene helical port is connected with a collection pipe; and the collection pipe penetrates through the ground glass port at the lower end of the glass column device to extend into the ground glass flask. The pretreatment device has the advantages of rational structure, easiness in mounting, convenience in operation and capabilities of simultaneously treating a plurality of samples, meeting the requirements of flow speed control and large-volume eluent and facilitating extensive generalization in analytic laboratories.
Description
Technical field
The utility model belongs to the food security technical field, particularly relates to a kind of pesticide residue detection pretreatment device, specifically be applicable to any effluent volume, and the plant source sample that can control eluent flow rate in pesticide residue detection pretreatment device.
Background technology
China is one of country that uses the earliest in the world pesticide control crops harmful organism; Because vast in territory, geographical environment in region and weather complicated condition, variety of crops are various, disease pest and weed takes place frequent; These problems have caused serious threat to agricultural production, agricultural chemicals in protection crops, prevention and elimination of disease and pests, improve aspects such as environment for human survival, control disease and brought into play important effect.
But increase along with pesticide species and consumption; Residues of pesticides have become one of key factor of environment and food pollution; Organophosphorus, organochlorine, the residual common concern that causes society of pyrethrin pesticide in plant-derived food and the Chinese herbal medicine; Detection method becomes whether standard compliant essential tool of supervision and inspection plant source food, and the sample pre-treatments technology then is the important factor of Detecting Pesticide method.
Sample pre-treatments mainly comprises to be extracted and purifies, and the classic method of extraction has ultrasonic method, homogeneous method, succusion, and the classic method of purification comprises liquid extraction method, sulfonation method, filling decontaminating column method.The sample pre-treatments technology of development in recent years; Like SPE, SPME, supercritical fluid extraction, microwave auxiliary extraction, accelerated solvent extraction and gel infiltration extraction etc.; Have that rate of extraction is fast, solvent load is few, the selectivity advantages of higher; But need extraction equipment, the cost height of specialty, be difficult to promote in common small test chamber, its range of application is restricted.
SPE is to utilize solid adsorbent with the target compound in fluid sample absorption, it is separated with interfering compound with collective in the sample, and then attach with eluent wash-out or heating desorption, reaches the purpose of separation and enrichment target compound.Compare with the liquid-liquid extraction conventional art, SPE has the following advantages: can adopt the adsorbent of opposed polarity and eluant, eluent to handle different types of agricultural chemicals, avoid the generation of emulsion, improve analysis efficiency; Using high-purity, poisonous organic solvent amount seldom, is a kind of eco-friendly method for separating and concentrating, in the sample pre-treatments of pesticide residue analysis, has obtained widespread use.
Existing commercialization solid-phase extraction device costs an arm and a leg; And mainly be applicable to the detection method of elution volume less than 10mL; This can not satisfy the needs of the daily detection of plant-derived sample far away, and purifying part like SPE among GB/T 5009.146-2008 and the GB/T5009.218-2008 all needs the 30mL eluent.
Summary of the invention
The purpose of the utility model be for solve the technical matters that exists in the known technology provide a kind of applicable to effluent volume arbitrarily, and the plant source sample that can control eluent flow rate in pesticide residue detection pretreatment device.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is:
A kind of pesticide residue detection pretreatment device; Comprise solid-phase extraction column, trestle table and grournd glass flask; Said trestle table is provided with glass column device and grournd glass flask; The bottleneck of said grournd glass flask docks with the grournd glass sealing joint of glass column device lower end, and the inlet of said glass column device upper end is connected with the teflon spiral interface, and said teflon spiral interface upper end is connected with solid-phase extraction column; Said teflon spiral interface lower end is connected with collection tube, and the grournd glass interface that said collection tube passes glass column device lower end extend in the grournd glass flask.
Said teflon spiral interface upper end is connected with solid-phase extraction column through the teflon operation valve.
Said trestle table includes base plate and the support that is positioned at the base plate middle part and is fixedly connected with base plate, is fixedly connected with the glass column device on the said support, and said base plate is provided with the grournd glass flask.
Said glass column device is the double glazing column jecket.
Also be provided with the vacuum pump connector on the said glass column device, said vacuum pump connector is connected with vacuum pump.
Said grournd glass interface is the lower end bell littler than upper end diameter.
Said teflon spiral interface comprises screw head and hollow tube, and said head and the inlet of glass column device screwed is through being threaded, and said hollow tube is positioned at the inlet of glass column device, and the end of said hollow tube is connected with collection tube.
The purification filler is housed in the said solid-phase extraction column, and said purification filler is acticarbon, Fo Luoli tripoli or Al
2O
3
Said grournd glass flask is that round-bottomed flask, flat bottom flask or KD concentrate bottle, has containing mark on it.
Said collection tube is the stainless steel collection tube.
Advantage and the good effect that the utlity model has are:
(1) the utility model has improved its range of application greatly to not restriction of effluent volume in the detection method.
(2) vacuum pump interface and teflon operation valve above this device can be controlled eluent flow rate easily, thereby make testing result have the good repeatability and the recovery.
(3) this device once can be handled a plurality of samples simultaneously, makes things convenient for greatly to have improved pre-treatment speed.
(4) this apparatus structure is simple, and is rationally economical and practical, helps the large-scale popularization in the assay laboratory.
Description of drawings
Fig. 1 is the utility model structural representation;
Among Fig. 1,1. glass column device, 2. trestle table, 3. flat bottom flask, 4. teflon spiral interface, 5. teflon operation valve, 6. solid-phase extraction column, 7. stainless steel collection tube, 8. vacuum pump connector.
Embodiment
For further understanding utility model content, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1, a kind of pesticide residue detection pretreatment device comprises glass column device 1, trestle table 2, flat bottom flask 3, teflon spiral interface 4, teflon operation valve 5, solid-phase extraction column 6 and stainless steel collection tube 7.Glass column device 1 is fixedly connected on the trestle table 2, and trestle table 2 includes base plate and the support that is positioned at the base plate middle part and is fixedly connected with base plate, is fixedly connected with glass column device 1 on the support, and base plate is provided with the grournd glass flask.Glass column device 1 is the double glazing column jecket, and there are four grournd glass interfaces the below, and the grournd glass interface is the lower end bell littler than upper end diameter, with flask 3 sealed butt joint.The top of glass column device 1 connects four teflon spiral interfaces 4 through inlet; Teflon spiral interface 4 comprises screw head and hollow tube; Screw head and the inlet of glass column device 1 through being threaded; Hollow tube is positioned at the inlet of glass column device 1, and the end of hollow tube is connected with stainless steel collection tube 7.
Teflon spiral interface 4 is connected with common solid-phase extraction column 6 through the head of screwing of upper end; Teflon spiral interface 4 is connected with stainless steel collection tube 7 through the hollow tube of lower end, and the grournd glass interface that stainless steel collection tube 7 passes glass column device 1 lower end extend in the flat bottom flask 3.
In order to reach the purpose of controlling flow velocity well; Teflon operation valve 5 lower ends are inserted in the teflon spiral interface 4; Can use common solid-phase extraction column 6 above the teflon operation valve 5, teflon operation valve 5 can be through the stainless steel collection tube 7 of fixing straight-through flat bottom flask 3 inlets of the mode of screwing.
The purification filler is housed in the solid-phase extraction column 6, and the purification filler is acticarbon, Fo Luoli tripoli or Al
2O
3, the quantity of solid-phase extraction column 6 is the same with the quantity of flat bottom flask 3.
The grournd glass flask can concentrate bottle for round-bottomed flask, flat bottom flask or KD, has containing mark on it.
The utility model solid-phase extraction column can experimental needs, use the solid-phase extraction column of different size, different fillers, are the activated charcoal solid-phase extraction column like what use among the GB/T 5009.146-2008.
The core component of this device is the glass column device; With and the teflon spiral interface and the stainless steel collection tube of attaching troops to a unit; Wherein the glass column device can connect vacuum pump according to the assay method needs, and can be through the grournd glass interface and the grournd glass flask sealed butt joint of lower end.The teflon spiral interface then on the one hand can make glass column device and teflon operation valve closely be serially connected, on the other hand can also be through the fixing stainless steel collection tube of the mode of screwing, thus eluent can be collected in the flat bottom flask smoothly.
During use,, on solid-phase extraction column, add the extract of plant source sample according to method combination shown in Figure 1; Add eluent, can connect vacuum pump through vacuum pump connector 8 if want to accelerate elution speed, eluent is collected in the flat bottom flask 3; Collected eluent obtains a kind liquid after concentrating, and this kind liquid can arrive large-scale instrument and equipment, like gas chromatograph (GC); Gas chromatograph-mass spectrometer (GC-MS), liquid chromatograph (LC), LC-MS appearance (LC-MS) is gone up analytical test.
The utility model is rational in infrastructure, installation is simple, and is easy to operate, can handle a plurality of samples simultaneously, and can satisfy the demand of flow speed control and big volume eluent, helps the large-scale popularization in the assay laboratory.
More than record is merely the embodiment that utilizes this origination techniques content, anyly is familiar with modification, the variation that this creation of this art utilization is done, and all belongs to the claim of this creation opinion, and is not limited to embodiment announcement person.
Claims (10)
1. pesticide residue detection pretreatment device; Comprise solid-phase extraction column (6), trestle table (2) and grournd glass flask; It is characterized in that; Said trestle table (2) is provided with glass column device (1) and grournd glass flask; The bottleneck of said grournd glass flask docks with the grournd glass sealing joint of glass column device (1) lower end, and the inlet of said glass column device (1) upper end is connected with teflon spiral interface (4), and said teflon spiral interface (4) upper end is connected with solid-phase extraction column (6); Said teflon spiral interface (4) lower end is connected with collection tube, and the grournd glass interface that said collection tube passes glass column device (1) lower end extend in the grournd glass flask.
2. a kind of pesticide residue detection pretreatment device according to claim 1 is characterized in that, said teflon spiral interface (4) upper end is connected with solid-phase extraction column (6) through teflon operation valve (5).
3. a kind of pesticide residue detection pretreatment device according to claim 1; It is characterized in that; Said trestle table (2) includes base plate and the support that is positioned at the base plate middle part and is fixedly connected with base plate; Be fixedly connected with glass column device (1) on the said support, said base plate is provided with the grournd glass flask.
4. according to claim 1 or 3 described a kind of pesticide residue detection pretreatment devices, it is characterized in that glass column device (1) is the double glazing column jecket.
5. a kind of pesticide residue detection pretreatment device according to claim 4 is characterized in that, also is provided with vacuum pump connector (8) on the said glass column device (1), and said vacuum pump connector (8) is connected with vacuum pump.
6. a kind of pesticide residue detection pretreatment device according to claim 1 is characterized in that, said grournd glass interface is the lower end bell littler than upper end diameter.
7. a kind of pesticide residue detection pretreatment device according to claim 1 and 2; It is characterized in that; Said teflon spiral interface (4) comprises screw head and hollow tube; Said head and the inlet of glass column device (1) screwed is through being threaded, and said hollow tube is positioned at the inlet of glass column device (1), and the end of said hollow tube is connected with receiving flask.
8. a kind of pesticide residue detection pretreatment device according to claim 1 and 2 is characterized in that, said solid-phase extraction column is equipped with the purification filler in (6), and said purification filler is acticarbon, Fo Luoli tripoli or Al
2O
3
9. according to claim 1 or 3 described a kind of pesticide residue detection pretreatment devices, it is characterized in that said grournd glass flask is that round-bottomed flask, flat bottom flask or KD concentrate bottle, has containing mark on it.
10. a kind of pesticide residue detection pretreatment device according to claim 1 is characterized in that, said collection tube is stainless steel collection tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231133 CN202599919U (en) | 2012-05-22 | 2012-05-22 | Pretreatment device of pesticide residue detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231133 CN202599919U (en) | 2012-05-22 | 2012-05-22 | Pretreatment device of pesticide residue detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599919U true CN202599919U (en) | 2012-12-12 |
Family
ID=47317449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231133 Expired - Fee Related CN202599919U (en) | 2012-05-22 | 2012-05-22 | Pretreatment device of pesticide residue detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202599919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662017A (en) * | 2012-05-22 | 2012-09-12 | 天津出入境检验检疫局动植物与食品检测中心 | Pesticide residue detection pretreatment device |
-
2012
- 2012-05-22 CN CN 201220231133 patent/CN202599919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662017A (en) * | 2012-05-22 | 2012-09-12 | 天津出入境检验检疫局动植物与食品检测中心 | Pesticide residue detection pretreatment device |
| CN102662017B (en) * | 2012-05-22 | 2014-06-18 | 天津出入境检验检疫局动植物与食品检测中心 | Pesticide residue detection pretreatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xu et al. | Developments in single-drop microextraction | |
| CN103234778B (en) | Device for enriching semi-volatile organic compounds in underground water | |
| CN102841161B (en) | Gas chromatography-mass spectrometric detection method for octyl phenol and nonyl phenol in aquatic products | |
| CN101871921A (en) | Needle type extraction device suitable for gas chromatography and using method | |
| CN102507297B (en) | Microwave-assisted Soxhlet and solid-phase extraction coupling device, microwave-assisted Soxhlet and solid-phase extraction coupling method and application of microwave-assisted Soxhlet and solid-phase extraction coupling | |
| CN101169393A (en) | Two-dimensional array liquid phase chromatogram-mass spectrometry combination method | |
| CN102735500A (en) | Passive sampling technology aiming at anionic polar organic pollutant in water | |
| CN1721850A (en) | A kind of solid phase extraction sample bottle and thermal analysis apparatus | |
| CN102507808B (en) | Method for enriching and separating trace amount of polychlorinated biphenyls (PCBs) | |
| CN104807688B (en) | A kind of method of micro polycyclic aromatic hydrocarbon in extracting and enriching large volume environmental water sample | |
| CN202599919U (en) | Pretreatment device of pesticide residue detection | |
| CN102662017B (en) | Pesticide residue detection pretreatment device | |
| CN1847841B (en) | Method of detecting content of micro amount of aristolochic acid A in water extract of Chinese medicine | |
| CN201417266Y (en) | Quick pretreatment device of pesticide residue detection in tea-leaves | |
| CN207913283U (en) | Phenyl bonded silica solid-phase extraction column | |
| CN105859715A (en) | Critical fluid chromatographic method for separating and purifying evodiamine and rutaecarpine from fructus evodiae | |
| CN202942682U (en) | Solid-phase extraction column | |
| CN204973135U (en) | Novel farming, residue of veterinary drug purify pretreatment straw | |
| CN202682838U (en) | Solid-phase extraction film disc device for gathering trace organic pollutants in glacier in field | |
| CN205031929U (en) | Farming, residue of veterinary drug purify pretreatment straw | |
| CN110579557B (en) | HPLC analysis detection method for simultaneously detecting 12 monocyclic aromatic hydrocarbons in water | |
| CN209809584U (en) | But solid phase extraction device of negative pressure suction | |
| CN201993349U (en) | Semi-automatic gel permeation purification device | |
| CN106248827B (en) | Extraction and detection method of 2, 4-decadienal | |
| CN102590401B (en) | Temperature programming large volume injection analyzing method suitable for high-resolution mass spectra |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |