广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
5期
120-122
,共3页
苯醚甲环唑%柑橘%土壤%残留
苯醚甲環唑%柑橘%土壤%殘留
분미갑배서%감귤%토양%잔류
difenoconazole%citrus%soil%residue
建立了苯醚甲环唑在柑橘和土壤中的残留分析方法。样品经丙酮、乙酸乙酯或丙酮、石油醚提取,中性氧化铝柱净化,GC-ECD检测。方法在0.2～20.0μg/mL范围内有良好的线性关系,柑橘和土壤中苯醚甲环唑最低检测质量分数为0.001 mg/kg。样本中添加量为0.02～1.0 mg/kg时（n=5）,平均回收率为72.90%～101.5%,相对标准偏差为1.36%～12.9%;方法的准确度和精密度均满足农药残留分析的要求。
建立瞭苯醚甲環唑在柑橘和土壤中的殘留分析方法。樣品經丙酮、乙痠乙酯或丙酮、石油醚提取,中性氧化鋁柱淨化,GC-ECD檢測。方法在0.2～20.0μg/mL範圍內有良好的線性關繫,柑橘和土壤中苯醚甲環唑最低檢測質量分數為0.001 mg/kg。樣本中添加量為0.02～1.0 mg/kg時（n=5）,平均迴收率為72.90%～101.5%,相對標準偏差為1.36%～12.9%;方法的準確度和精密度均滿足農藥殘留分析的要求。
건립료분미갑배서재감귤화토양중적잔류분석방법。양품경병동、을산을지혹병동、석유미제취,중성양화려주정화,GC-ECD검측。방법재0.2～20.0μg/mL범위내유량호적선성관계,감귤화토양중분미갑배서최저검측질량분수위0.001 mg/kg。양본중첨가량위0.02～1.0 mg/kg시（n=5）,평균회수솔위72.90%～101.5%,상대표준편차위1.36%～12.9%;방법적준학도화정밀도균만족농약잔류분석적요구。
GC method for the determination of difenoconazole residue in citrus and soil was established.The sample was extracted with acetone and ethyl acetate or acetone and petroleum ether,and purified by a alumina column,finally the pesticide residue was determined by gas chromatography with electron-capture detection.The linear relationship was obtained over the concentration 0.2~20.0 μg/mL.The limit of detection was 0.001 mg/kg.Recoveries at citrus and soil concentrations 0.02~1.0 mg/kg were 72.90%~101.5% with RSDs 1.36%~12.9%（n=5）.The sensitivity and acuracy of the proposed method were suitable for analysis of pesticide residue in citrus and soil.
