摘要
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.
作者
冯玉洁
田海
罗激光
梁延坡
谢圣华
吉训聪
马晨
FENG Yujie;TIAN Hai;LUO Jiguang;LIANG Yanpo;XIE Shenghua;JI Xuncong;MA Chen(Analysis and Test Center,Chinese Academy of Tropical Agricultural Sciences,Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables,Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable,Ministry of Agriculture and Rural Affairs,Haikou 571101;Institute of Plant Protection of Hainan Academy of Agricultural Sciences,Research Center of Quality Safety and Standards of Agricultural Products in Hainan Academy of Agricultural Sciences)
出处
《中国果树》
2024年第2期96-100,共5页
China Fruits
基金
海南省自然科学基金项目(322MS107、322RC794)
海南省热带果蔬产品质量安全重点实验室(KFKT2022002)。
关键词
啶氧菌酯
香蕉
土壤
分析方法
气相色谱仪
picoxystrobin
banana
soil
analytical method
gas chromatograph
