鞍山师范学院学报
鞍山師範學院學報
안산사범학원학보
JOURNAL OF ANSHAN TEACHERS COLLEGE
2011年
6期
41-43
,共3页
食用菌%农药%多残留分析%气相色谱法
食用菌%農藥%多殘留分析%氣相色譜法
식용균%농약%다잔류분석%기상색보법
Edible fungi%Pesticide%Multiresidue analysis%Gas chromatography
建立了食用菌中10种农药残留量的气相色谱分析方法.样品用乙酸乙酯-正己烷(体积比1∶1)溶液提取,经HP-5石英毛细管柱分离后,采用GC-FPD同时测定10种农药残留量.10种农药在0.1~5 mg/L范围内,均有良好线性关系.相关系数r大于0.997,样品在3个添加水平时的回收率为82%~110%,相对标准偏差为4.1%~12.9%.检出限为0.02~0.03 mg/kg.方法简便、快速、净化效果较好,可同时满足进、出口食用菌中多种农药残留量的检测需要.
建立瞭食用菌中10種農藥殘留量的氣相色譜分析方法.樣品用乙痠乙酯-正己烷(體積比1∶1)溶液提取,經HP-5石英毛細管柱分離後,採用GC-FPD同時測定10種農藥殘留量.10種農藥在0.1~5 mg/L範圍內,均有良好線性關繫.相關繫數r大于0.997,樣品在3箇添加水平時的迴收率為82%~110%,相對標準偏差為4.1%~12.9%.檢齣限為0.02~0.03 mg/kg.方法簡便、快速、淨化效果較好,可同時滿足進、齣口食用菌中多種農藥殘留量的檢測需要.
건립료식용균중10충농약잔류량적기상색보분석방법.양품용을산을지-정기완(체적비1∶1)용액제취,경HP-5석영모세관주분리후,채용GC-FPD동시측정10충농약잔류량.10충농약재0.1~5 mg/L범위내,균유량호선성관계.상관계수r대우0.997,양품재3개첨가수평시적회수솔위82%~110%,상대표준편차위4.1%~12.9%.검출한위0.02~0.03 mg/kg.방법간편、쾌속、정화효과교호,가동시만족진、출구식용균중다충농약잔류량적검측수요.
A gas chromatography(GC) method is built for determination of ten pesticides residues in edible Fungi sample.The sample is extracted with ethyl acetaten-hexane(1∶1 by volume) then determined by gas chromatography using capillary column equipped with electron capture detector.The calibration curves show good linearity in the range of 0.1~5 mg/L for all ten pesticides,respectively,with correlative coefficients more than 0.997.The limits of detection(LOD) are 0.02~0.03 mg/kg for 10 pesticides in edible fungus.The recoveries of 10 pesticides from edible fungi sample with three concentration levels range from 82% to 110%,and the relative standard deviations are between 4.1% and 12.9%.The method is simple,fast,accurate and has better purification effect.It meets the requirements for simultaneous determination of many pesticides in edible fungi for import and export inspection.