蔬菜中有機磷和氨基甲酸酯農(nóng)藥的快速檢測新技術(shù).pdf

1、分類號——UDC密級編號廈門大學(xué)博士后研究工作報告蔬菜中有機磷和氨基甲酸酯農(nóng)藥的快速檢測新技術(shù)姓名李權(quán)龍1：作完成口期2003年3月一2005年2月報告提交日期廈fj大學(xué)2005年3月AbstractA11ighsensitivityandlowcostnovelmethodfortherapiddeterminationoforganophosphorousandcarbamatepesticidesinvegetableswasde

2、velopedinthisstudyItcouldbeappliedinthelaboratoriesofwholesalemarketforagriculturalproducts，centerfordiseasecontrolandvegetablecompanytodetecttheresidualofpesticidesinvegetables，Theprincipleofthedeterminationoforganophos

3、phrouspesticideswassummarizedasfollows：anadsorbentwasappliedtemovethenontargetorganophosphrouscompounds(organophosphrouspesticideswerenotincluded)inthevegetableextracts，andtheleftorganophosphrouspesticidesintheextractwer

4、etransferredintophosphatewiththeoxidationofpotassiumpersulphate，thentheresidualoforganophosphorouspesticidesinvegetablecouldbecalculatedfromthedeterminedconcentrationofphosphateTheprincipleofthedeterminationofcarbamatepe

5、sticideswassummarizedasfollows：anadsorbentwasappliedtemovetheinterferingsubstancesinthevegetableextracts，andtheleftcarbamtepesticideswerehydrolyzedintometh)rlamine、ⅣimNaOHthenthemethylaminewasderivedintoafluorescingcompo

6、undwithO—phthalaldehydeandmercapant，theresidualofcarbamatepesticidesinvegetablecouldbecalculatedfromthefluorescenceintensityThetimeforthismethodtodetectollesamplewasabout30rainand65minwasneededforabatchof12samplesThemeth

7、oddetectionlimitfororganophosphorouspesticideswasbetweenO08036mg／kgandlowerthanO15mg／kgforcarbanmtepesticidesThecostforonesampleisabout06RMl3Comparedwiththewidelyusedenzymeinhibitionmethod，thismethodhashighersensitivityl

8、owerdetectionlimitandcostTheapplicationofthismethodwillhelpthegovernmentandagencieskeepefficientlythevegetablesawayfromhighpesticideresidues，SOastoprotectthehealthofthepeopleKeywords：Organophosphorouspesticides，Carbamate