广东农业科学
廣東農業科學
엄동농업과학
GUANGDONG AGRICULTURAL SCIENCES
2009年
12期
168-170
,共3页
气相色谱法%糙米%有机磷农药%残留
氣相色譜法%糙米%有機燐農藥%殘留
기상색보법%조미%유궤린농약%잔류
GC%brown rice%organophosphorus pesticides%residues
建立了测定糙米中有机磷农药残留量的气相色谱分析方法,即样品采用乙腈超声提取、浓缩,采用丙酮定容,应用气相色谱法进行定量分析.测定结果显示:11种有机磷农药的检出限为0.004～0.010 mg/kg;在0.02～0.50 mg/kg加标情况下,11种有机磷农药的平均回收率(n=3)为75.5%～110.1%,相对标准偏差为1.22%～5.00%.该方法具有简单、快速,准确、灵敏、重现性好的特点,适合糙米中有机磷农药残留量的分析.
建立瞭測定糙米中有機燐農藥殘留量的氣相色譜分析方法,即樣品採用乙腈超聲提取、濃縮,採用丙酮定容,應用氣相色譜法進行定量分析.測定結果顯示:11種有機燐農藥的檢齣限為0.004～0.010 mg/kg;在0.02～0.50 mg/kg加標情況下,11種有機燐農藥的平均迴收率(n=3)為75.5%～110.1%,相對標準偏差為1.22%～5.00%.該方法具有簡單、快速,準確、靈敏、重現性好的特點,適閤糙米中有機燐農藥殘留量的分析.
건립료측정조미중유궤린농약잔류량적기상색보분석방법,즉양품채용을정초성제취、농축,채용병동정용,응용기상색보법진행정량분석.측정결과현시:11충유궤린농약적검출한위0.004～0.010 mg/kg;재0.02～0.50 mg/kg가표정황하,11충유궤린농약적평균회수솔(n=3)위75.5%～110.1%,상대표준편차위1.22%～5.00%.해방법구유간단、쾌속,준학、령민、중현성호적특점,괄합조미중유궤린농약잔류량적분석.
A method was developed for detecting eleven organophosphorus pesticides in brown flee. The residues of pesticides were extracted from sampleswith acetonitrile, concentrated and fixed with acetone and detected by gas capillary chromatography with FPD detector. Results showed that the minimum detection limits ranged were 0.004～0.010 mg/kg. When fortified level ranged from 0.02～0.50 mg/kg, the recoveries were found 75.5%～110.1%, with RSD ranged from 1.22% to 5.00% in brown flee. The method was rapid, practical and up to the request of multi-residues determination.
