Position: Home > Articles > Determination of Bifenthrin and Chlorfenapyr Residues in Tea and Soil by GC-MS
Journal of Anhui Agricultural Sciences
2022,50
(1)
200-202
气质串联测定茶叶与土壤中联苯菊酯和溴虫腈残留
作 者：
余霞奎;李红莉;白俊慧
单 位：
杭州市农业科学研究院实验中心
关键词：
气质串联;茶叶;土壤;联苯菊酯;溴虫腈;农药残留
摘 要：
[目的]建立茶叶与土壤中同时测定联苯菊酯、溴虫腈农药的气质串联分析方法。[方法]茶叶或土壤样品经过加适量水充分浸润,乙腈提取,饱和氯化钠溶液分相初步净化,十八烷基小柱进一步除杂,氮吹浓缩定容后进样测试。[结果]2种农药的3个浓度水平的平均加标回收率为76.2%～86.7%,相对标准偏差(RSD)为5.8%～9.8%(n=6)。[结论]该方法操作相对简单省时,具有良好的灵敏度、准确度和精密度,完全能满足实验室农药残留限量检测需要,非常适合茶园对联苯菊酯、溴虫腈用药后的跟踪监测。
译 名：
Determination of Bifenthrin and Chlorfenapyr Residues in Tea and Soil by GC-MS
作 者：
YU Xia-kui;LI Hong-li;BAI Jun-hui;Experimental Center of Hangzhou Academy of Agricultural Sciences;
关键词：
GC-MS;;Tea;;Soil;;Bifenthrin;;Chlorfenapyr;;Pesticide residues
摘 要：
[Objective]To establish a tandem analysis method for the simultaneous determination of bifenthrin and chlorfenapyr pesticides in tea and soil.[Method]Tea or soil samples were fully infiltrated with appropriate amount of water, extracted with acetonitrile, the saturated sodium chloride solution was purified by phase separation, further impurity removal by octadecyl SPE column, and nitrogen blowing concentration, solubilization, constant volume, and then injection test. [Result] The average recovery rates of the two pesticides at the three concentration levels were 76.2%-86.7%, and the relative standard deviation(RSD) was 5.8%-9.8%(n=6).[Conclusion]The method is relatively simple and time-saving, and has good sensitivity, accuracy and precision. It can fully meet the requirements of laboratory pesticide residue limit detection. It is very suitable for tracking and monitoring of bifenthrin and chlorfenapyr pharmacy in tea garden.
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