福建分析测试
福建分析測試
복건분석측시
FUJIAN ANALYSIS & TESTING
2011年
6期
46-50
,共5页
陈志涛%陈春添%赵建晖%吴文凡%郑香平%张睿
陳誌濤%陳春添%趙建暉%吳文凡%鄭香平%張睿
진지도%진춘첨%조건휘%오문범%정향평%장예
固相萃取%气相色谱法%有机磷农药%水产品
固相萃取%氣相色譜法%有機燐農藥%水產品
고상췌취%기상색보법%유궤린농약%수산품
Solid phase extraction(SPE)%Gas chromatography%0rgan0ph0sphat pesticides%Fishery product
建立了固相萃取-气相色谱法快速检测水产品中11种农药残留的分析方法。样品用乙腈水溶液均质提取,经盐析作用分离出乙腈层,经C18和PSA串联柱净化后用GC-FPD检测分析,采用外标法定量。方法的检出限(S/N=3)为0.004~0.008mg/kg,在加标水平为0.01mg/kg时,方法回收率为71.2%~107%,相对标准偏差为3.9%~9.5%;在加标水平为0.02mg/kg时,方法回收率为73.5%~108%,相对标准偏差为3.5%~10%。
建立瞭固相萃取-氣相色譜法快速檢測水產品中11種農藥殘留的分析方法。樣品用乙腈水溶液均質提取,經鹽析作用分離齣乙腈層,經C18和PSA串聯柱淨化後用GC-FPD檢測分析,採用外標法定量。方法的檢齣限(S/N=3)為0.004~0.008mg/kg,在加標水平為0.01mg/kg時,方法迴收率為71.2%~107%,相對標準偏差為3.9%~9.5%;在加標水平為0.02mg/kg時,方法迴收率為73.5%~108%,相對標準偏差為3.5%~10%。
건립료고상췌취-기상색보법쾌속검측수산품중11충농약잔류적분석방법。양품용을정수용액균질제취,경염석작용분리출을정층,경C18화PSA천련주정화후용GC-FPD검측분석,채용외표법정량。방법적검출한(S/N=3)위0.004~0.008mg/kg,재가표수평위0.01mg/kg시,방법회수솔위71.2%~107%,상대표준편차위3.9%~9.5%;재가표수평위0.02mg/kg시,방법회수솔위73.5%~108%,상대표준편차위3.5%~10%。
A method for the rapid determination of 11 pesticide multiresiduals in fishery product by gas chromatography with solid-phase extraction was proposed.The compounds were extracted from ho-mogenized tissue with acetonitrile-water.After acetonitrile was separated by salting-out,acetonitrile purified by solid phase extraction was ready for GC-FPD analysis.Under the optimal conditions,the detection limits(S/N=3)were in the range of 0.004~0.008mg/kg.Tests for recovery were made by addition of mixed standards of 0.01mg/kg,and the recoveries were 71.2%~107%,and the relative standard deviations were 3.9%~9.5%.Tests for recovery were made by addition of mixed standards of 0.02mg/kg,and the recoveries were 73.5%~108%,and the relative standard deviations were 3.5%~10%.