食品工程
食品工程
식품공정
FOOD ENGINEERING
2014年
4期
57-59
,共3页
气相色谱法%氰戊菊酯%氯氰菊酯%溴氰菊酯
氣相色譜法%氰戊菊酯%氯氰菊酯%溴氰菊酯
기상색보법%청무국지%록청국지%추청국지
gas chromatography%fenvalerate%cypermethrin%deltamethrin
建立了气相色谱检测小麦和玉米中氰戊菊酯、氯氰菊酯和溴氰菊酯残留量的方法。样品中的目标物采用乙腈提取，经PSA净化，气相色谱-电子捕获检测器（GC-ECD）检测。试验结果表明，小麦和玉米样品基质3水平添加条件下，3种农药的回收率（n=6）为66.3%～116.0%，相对标准偏差1.48%～10.30%，最低检出限为0.0009 mg/kg～0.0010 mg/kg。该方法的灵敏度、准确度和精密度均符合农药残留测定的要求，可以对小麦和玉米中的这3种农药残留进行有效监控。
建立瞭氣相色譜檢測小麥和玉米中氰戊菊酯、氯氰菊酯和溴氰菊酯殘留量的方法。樣品中的目標物採用乙腈提取，經PSA淨化，氣相色譜-電子捕穫檢測器（GC-ECD）檢測。試驗結果錶明，小麥和玉米樣品基質3水平添加條件下，3種農藥的迴收率（n=6）為66.3%～116.0%，相對標準偏差1.48%～10.30%，最低檢齣限為0.0009 mg/kg～0.0010 mg/kg。該方法的靈敏度、準確度和精密度均符閤農藥殘留測定的要求，可以對小麥和玉米中的這3種農藥殘留進行有效鑑控。
건립료기상색보검측소맥화옥미중청무국지、록청국지화추청국지잔류량적방법。양품중적목표물채용을정제취，경PSA정화，기상색보-전자포획검측기（GC-ECD）검측。시험결과표명，소맥화옥미양품기질3수평첨가조건하，3충농약적회수솔（n=6）위66.3%～116.0%，상대표준편차1.48%～10.30%，최저검출한위0.0009 mg/kg～0.0010 mg/kg。해방법적령민도、준학도화정밀도균부합농약잔류측정적요구，가이대소맥화옥미중적저3충농약잔류진행유효감공。
A analytical method was established for the simultaneous determination of fenvalerate, cypermethrin and deltamethrin in wheat and corn by gas chromatography. The wheat and corn were extracted with acetonitrile, clean-up by PSA and determined by gas chromatography-electron capture detector (GC-ECD) to determine (ECD) .Results showed that the average recovery rate of three pesticides were from 66.3%to 116.0%, the relative standard deviation were from 1.48%to 10.30%, the minimum detection limit ranged from 0.000 9 mg/kg to 0.001 0 mg/kg. The determination method was characterized by simplicity, higher sensitivity and accuracy, and effective monitoring of for pesticide residues in wheat and corn.
