학술논문

啶氧菌酯在香蕉及土壤中的残留分析方法研究 / Study on the method of residue analysis of picoxystrobin in banana and soil
Document Type
Academic Journal
Source
中国果树 / China Fruits. (2):96-100
Subject
啶氧菌酯
香蕉
土壤
分析方法
气相色谱仪
picoxystrobin
banana
soil
analytical method
gas chromatograph
Language
Chinese
ISSN
1000-8047
Abstract
为研究啶氧菌酯在香蕉及土壤中的残留分析方法,采用外标法定量,试验样品经乙腈提取,固相萃取净化后经气相色谱仪-微电子捕获检测器检测,在0.02~0.10 mg/kg和0.01~0.10 mg/kg添加水平范围内,香蕉和土壤中啶氧菌酯的回收率分别为101.4%~109.2%和93.7%~105.0%,相对标准偏差(RSD)分别为2.5%~4.0%和2.8%~8.4%,最小检出量均为0.01 ng,最低检出浓度分别为0.02 mg/kg和0.01 mg/kg.该分析方法灵敏度、准确度、精密度均满足农药残留分析要求,可广泛用于啶氧菌酯残留检测.
To study the method of residue analysis of picoxystrobin in banana and soil.The samples were extracted with acetonitrile,purified by solid phase extraction,detected by gas chromatography-microelectronic capture detector,and external standard for quantification.The recoveries of banana and soil were 101.4%~109.2%and 93.7%~105.0%,respectively,in the range of 0.02 to 0.10 mg/kg and 0.01 to 0.10 mg/kg,relative standard deviation(RSD)were 2.5%~4.0%and 2.8%~8.4%,respectively.The minimum detected amounts were 0.01 ng,and the minimum detected concentrations were 0.02 mg/kg and 0.01 mg/kg,respectively.The sensitivity,accuracy and precision of the method meet the requirements of pesticide residue analysis,and can be widely used for the detection of picoxystrobin residue.