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Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate
Published on: January 20, 2023
Simultaneous determination of omethoate and dichlorvos by capillary electrophoresis
Yugui Tao1, Yaoming Wang, Lianbin Ye
1Engineering Technology Research Center of Microbial Fermentation Anhui Province, Wuhu, 241000, Anhui, Peoples' Republic of China. taoyugui888@yahoo.com.cn
Abstract:
A capillary electrophoresis method has been developed for the analysis of omethoate and dichlorvos. Response surface methodology (RSM) was used to optimize the separate conditions for simultaneous detection of omethoate and dichlorvos. The results indicated that the optimal conditions for omethoate and dichlorvos determination were; pH 7.64, SDS concentration 67.5 mM, separation voltage 19.0 KV. Quantitative linear ranges were 1.0-300 microg/mL for omethoate and dichlorvos with correlation of 0.9967 and 0.9965, respectively. The limits of detection were 0.046 microg/mL and 0.031 microg/mL for omethoate and dichlorvos, with relative standard deviations (R.S.D.) <3.6%. The value of recoveries for omethoate and dichlorvos were arranged from 94.1% to 106.0%.
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