CN1763509A - Quick detection method for pyrethroid pesticide residue - Google Patents
Quick detection method for pyrethroid pesticide residue Download PDFInfo
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- CN1763509A CN1763509A CN 200410155382 CN200410155382A CN1763509A CN 1763509 A CN1763509 A CN 1763509A CN 200410155382 CN200410155382 CN 200410155382 CN 200410155382 A CN200410155382 A CN 200410155382A CN 1763509 A CN1763509 A CN 1763509A
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- pyrethroid pesticide
- pesticide remained
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Abstract
The invention discloses a rapid detection method of synthetic pyrethroid pesticide residual, which comprises the following steps: (1) extraction the detected material: putting the synthetic pyrethroid pesticide residual in the reactor; (2) decomposition, gas production reaction: decomposing the detected material into compound within cyanide; adding the solid particle of sodium borohydride and adsorption host to mix with the detected material; adding sulphuric acid solution in the reactor to react large amount of gas; (3) colour reaction: guiding the decomposed gas in the absorber; reacting with the specific developer to make solution display blue; (4) qualitative analysis: generating qualitative or semiquanlitative analysis of synthetic pyrethroid pesticide in comparison with the colorimetric card.
Description
Technical field
The present invention relates to a kind of pyrethroid pesticide remained method for quick.
Background technology
At present, pyrethroid pesticide is the pesticide species that China is just using in large-scale popularization, and its residual food-safety problem that causes causes people's attention day by day.Existing method need be carried out pre-treatment processes such as complicated extraction, purification to pyrethroid pesticide remained analysis to sample, adopt large-scale instruments such as gas chromatography, gas chromatography-mass spectrum to analyze then.These methods are not only operated miscellaneous, and sense cycle is long, and reagent consumption is big and can't become quick, low-cost and method easy to utilize.
Summary of the invention
The objective of the invention is to provide a kind of pyrethroid pesticide remained method for quick, this detection method is not only simple and efficient to handle, and cost is low, and helps applying.
The detection step of the method for quick that the present invention is pyrethroid pesticide remained is as follows: (1) extracts detected material: will contain weighs after pyrethroid pesticide remained detection thing grinds inserts in the reactor.(2) decomposition, air-generating reaction: pyrethroid pesticide remained the resolving into that will detect in the thing with strong basicity reagent earlier contains cyanogen compound, then adding the solid particle that is mixed and made into by sodium borohydride and adsorbing base mixes with the detection thing, in reactor, add sulfuric acid solution at last, produce a large amount of gases with the solid particle made reaction moment.(3) chromogenic reaction:, the gaseous state composition that will decompose produce is introduced absorber, and the absorption liquid that is absorbed in the device absorbs, and described absorption liquid is the complexing agent of being made up of toluene-sodium-sulfonchloramide, isonicotinic acid and pyrazolone.Specific developer reaction in gas that generates and the absorption liquid makes the solution becomes au bleu.(4) qualitative analysis: by with the comparison of the colorimetric card of made of the present invention, thereby make the pyrethroid pesticide in the sample obtain qualitative and semi-quantitative analysis.
The present invention uses multi-usage micro constitutent device for fast detecting, according to specific chemical principle, under the acting in conjunction of aerogenesis reagent that strong basicity reagent, the solid particle that is mixed and made into by sodium borohydride and adsorbing base are mixed with and sulfuric acid solution and specific developer, the residues of pesticides of trace are developed the color intuitively.Realized fast detecting pyrethroid pesticide remained in the agricultural byproducts by contrasting we " the pyrethroid pesticide remained colorimetric card " of making.This method operation is fast and convenient, is suitable for on-the-spot and the breadboard fast detecting of basic unit.
Description of drawings
Fig. 1 is the pyrethroid pesticide remained device for fast detecting synoptic diagram of the present invention.
Embodiment
The detection step of the method for quick that the present invention is pyrethroid pesticide remained is as follows: (1) extracts detected material: will contain weighs after pyrethroid pesticide remained detection thing grinds inserts in the reactor; (2) decomposition, air-generating reaction: pyrethroid pesticide remained the resolving into that will detect in the thing with strong basicity reagent earlier contains cyanogen compound, then adding the solid particle that is mixed and made into by sodium borohydride and adsorbing base mixes with the detection thing, in reactor, add sulfuric acid solution at last, produce a large amount of gases with the solid particle made reaction moment.(3) chromogenic reaction:, the gaseous state composition that resolves into is introduced absorber, and the absorption liquid that is absorbed in the device absorbs, described absorption liquid is the complexing agent of being made up of toluene-sodium-sulfonchloramide isonicotinic acid and pyrazolone.Specific developer reaction in gas that generates and the absorption liquid makes the solution becomes au bleu.(4) qualitative analysis: by with the comparison of the colorimetric card of made of the present invention, thereby make the pyrethroid pesticide in the sample obtain qualitative and semi-quantitative analysis.
Above-mentioned strong basicity reagent is 0.5mol/L sodium hydroxide solution or potassium hydroxide solution.
The above-mentioned sodium borohydride and the proportioning of adsorbing base are 1: 3～5.
Above-mentioned sulfuric acid solution concentration is 15～35%.
The complexing agent proportioning that above-mentioned toluene-sodium-sulfonchloramide isonicotinic acid and pyrazolone are formed is 5: 5: 2.
With reference to Fig. 1, specific practice of the present invention is: the reactor (2) that sample is placed multi-usage micro constitutent device for fast detecting; Earlier with aqueous alkali with the pyrethroid pesticide remained a certain gaseous state composition (as containing cyanogen compound) that resolves into, at this moment, continuation adds the solid particle reagent mix that is mixed and made into by sodium borohydride and adsorbing base in reactor (2) even, then from charger (1), add sulfuric acid solution again, moment produces a large amount of gases, gaseous state composition (containing cyanogen compound) is introduced absorber (3), and the absorption liquid that is absorbed in the device (3) absorbs.Specific developer reaction in gaseous state composition (containing cyanogen compound) and the absorption liquid, the solution becomes au bleu.Shade is directly proportional with pyrethroid pesticide content in the sample, by with the comparison of the colorimetric card of made of the present invention, thereby make the pyrethroid pesticide in the sample obtain qualitative and semi-quantitative analysis.
The present invention is novel, and is economic and practical, and its market outlook are considerable.
Claims (5)
1. pyrethroid pesticide remained method for quick, it is as follows to it is characterized in that it detects step:
(1) extract detected material: will contain weighs after pyrethroid pesticide remained detection thing grinds inserts in the reactor.
(2) decomposition, air-generating reaction: pyrethroid pesticide remained the resolving into that will detect in the thing with strong basicity reagent earlier contains cyanogen compound, then adding the solid particle that is mixed and made into by sodium borohydride and adsorbing base mixes with the detection thing, in reactor, add sulfuric acid solution at last, produce a large amount of gases with the solid particle made reaction moment.
(3) chromogenic reaction: will decompose the gaseous state composition that produces and introduce absorber, and the absorption liquid that is absorbed in the device absorbs, described absorption liquid is the complexing agent of being made up of toluene-sodium-sulfonchloramide isonicotinic acid and pyrazolone.Specific developer reaction in gas that generates and the absorption liquid makes the solution becomes au bleu.
(4) qualitative analysis: by with the comparison of the colorimetric card of made of the present invention, thereby make the pyrethroid pesticide in the sample obtain qualitative and semi-quantitative analysis.
2. pyrethroid pesticide remained method for quick according to claim 1 is characterized in that: described strong basicity reagent is 0.5mol/L sodium hydroxide solution or potassium hydroxide solution.
3. pyrethroid pesticide remained method for quick according to claim 1 is characterized in that: the proportioning of described sodium borohydride and adsorbing base is 1: 3～5.
4. pyrethroid pesticide remained method for quick according to claim 1 is characterized in that: described sulfuric acid solution concentration is 15～35%.
5. pyrethroid pesticide remained method for quick according to claim 1 is characterized in that: the complexing agent proportioning that described toluene-sodium-sulfonchloramide isonicotinic acid and pyrazolone are formed is 5: 5: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101553821A CN100543463C (en) | 2004-10-18 | 2004-10-18 | Pyrethroid pesticide remained method for quick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101553821A CN100543463C (en) | 2004-10-18 | 2004-10-18 | Pyrethroid pesticide remained method for quick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1763509A true CN1763509A (en) | 2006-04-26 |
| CN100543463C CN100543463C (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004101553821A Expired - Fee Related CN100543463C (en) | 2004-10-18 | 2004-10-18 | Pyrethroid pesticide remained method for quick |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128826A (en) * | 2010-11-11 | 2011-07-20 | 中国烟草总公司湖北省公司 | Novel color-developing agent luminosity analytical method for measuring hydrogen cyanide content in mainstream smoke quickly |
| CN102262089A (en) * | 2011-04-28 | 2011-11-30 | 华中农业大学 | Method for quickly and quantitatively detecting pesticide residue of cyanogens-containing synthetic pyrethroids in tea |
| CN101971021B (en) * | 2008-02-29 | 2012-09-05 | 伦敦卫生及热带医学学院 | Colorimetric assay for pyrethroid insecticides |
| CN105928940A (en) * | 2016-07-11 | 2016-09-07 | 苏州大学 | Pesticide residue detection method and detection kit |
| CN106124433A (en) * | 2016-06-22 | 2016-11-16 | 上海理工大学 | A kind of method that quick detection is pyrethroid pesticide remained |
| CN106198519A (en) * | 2016-07-05 | 2016-12-07 | 广州市食品检验所 | The ninhydrin colorimetry of cypermethrin content in a kind of quick detection vegetable or fruit |
| CN106442507A (en) * | 2016-11-03 | 2017-02-22 | 百奥森（江苏）食品安全科技有限公司 | Detection test paper for pyrethroid pesticide residues in foods |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915813B (en) * | 2010-07-26 | 2012-08-22 | 云南烟草科学研究院 | Method for detecting pyrethroid pesticide residue amount in smoke by cigarette filter |
-
2004
- 2004-10-18 CN CNB2004101553821A patent/CN100543463C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971021B (en) * | 2008-02-29 | 2012-09-05 | 伦敦卫生及热带医学学院 | Colorimetric assay for pyrethroid insecticides |
| CN102128826A (en) * | 2010-11-11 | 2011-07-20 | 中国烟草总公司湖北省公司 | Novel color-developing agent luminosity analytical method for measuring hydrogen cyanide content in mainstream smoke quickly |
| CN102128826B (en) * | 2010-11-11 | 2012-08-29 | 中国烟草总公司湖北省公司 | Novel color-developing agent luminosity analytical method for measuring hydrogen cyanide content in mainstream smoke quickly |
| CN102262089A (en) * | 2011-04-28 | 2011-11-30 | 华中农业大学 | Method for quickly and quantitatively detecting pesticide residue of cyanogens-containing synthetic pyrethroids in tea |
| CN102262089B (en) * | 2011-04-28 | 2014-05-21 | 华中农业大学 | Method for quickly and quantitatively detecting pesticide residue of cyanogens-containing synthetic pyrethroids in tea |
| CN106124433A (en) * | 2016-06-22 | 2016-11-16 | 上海理工大学 | A kind of method that quick detection is pyrethroid pesticide remained |
| CN106124433B (en) * | 2016-06-22 | 2018-11-13 | 上海理工大学 | A method of it quickly detects pyrethroid pesticide remained |
| CN106198519A (en) * | 2016-07-05 | 2016-12-07 | 广州市食品检验所 | The ninhydrin colorimetry of cypermethrin content in a kind of quick detection vegetable or fruit |
| CN106198519B (en) * | 2016-07-05 | 2019-01-25 | 广州市食品检验所 | The ninhydrin colorimetry of cypermethrin content in a kind of quick detection vegetables or fruit |
| CN105928940A (en) * | 2016-07-11 | 2016-09-07 | 苏州大学 | Pesticide residue detection method and detection kit |
| CN106442507A (en) * | 2016-11-03 | 2017-02-22 | 百奥森（江苏）食品安全科技有限公司 | Detection test paper for pyrethroid pesticide residues in foods |
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| Publication number | Publication date |
|---|---|
| CN100543463C (en) | 2009-09-23 |
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