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| Separation and Assay of 7 Endocrine Disrupting Pesticides in Corn and Durra by Micellar Electrokinetic Capillary Electrophoresis |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:micellar electrokinetic capillary electrophoresis pesticides analysis endocrine-disrupting chemicals |
| Author | Institution |
| 张玉芬，齐景凯，韩娜仁花，于秀英 |
1.内蒙古民族大学分析测试中心;2.内蒙古民族大学生命科学学院;3.内蒙古民族大学农学院 |
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| Abstract: |
| A method was developed for the simultaneous separation and determination of carbendazim，simazine，atrazine，chlorpyrifos，decamethrim,acetochlor and cypermethrin in corn and durra by micellar electrokinetic capillary electrophoresis.The conditions for separation and detection of a mixture of seven pesticides were optimized.The results showed that，under the optimized conditions of running buffer：20 mmol/L Na2HPO4+50 mmol/L SDS+5% acetonitrile（pH 9.0)，separation voltage：20 kV，detection wavelength：222 nm，ambient temperature:25 ℃，pressure injection：30 mbar×10 s，the analytes were successfully separated within 28 min.The calibration curves of seven pesticides were linear in the range of 5.0-150 μg?L-1.The detection limits were in the range of 0.6-3.0 μg/L.This method was successfully applied in the analysis of seven pesticides in corn and durra samples with spiked recoveries of 97%-108% and RSD of 2.2%-4.7% |
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