【摘 要】
：
The QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) sample preparation method was used for the determination of 11 carbamate pesticide (methomyl, propoxur, pirimicarb, carbofuran, bendiocarb
【机 构】
：
College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271018, China
【出 处】
：
第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会
论文部分内容阅读
The QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) sample preparation method was used for the determination of 11 carbamate pesticide (methomyl, propoxur, pirimicarb, carbofuran, bendiocarb, carbaryl, isoprocarb, methiocarb, fenobucarb, furathiocarb and indoxacarb) residues in Flos carthami (Carthamus tinctorlus L.).The method involved extraction with acetonitrile, liquid-liquid partitioning with the addition of MgSO4 and NaC1, DSPE (dispersive solid-phase extraction) sample cleanup with PSA, A12O3-N and GCB sorbents, and the analyses using UPLC-MS/MS equipment.The method was validated using a Flos carthami sample spiked with each analyte at 0.01, 0.02, 0.04 and 0.08 mg kg-1.The average recoveries of the 11 carbamate pesticides studied varied from 81.1% to 104.2%, with RSDs < 10%.The limits of detection (LODs) and the limits of quantification (LOQs) ranged from 0.3 μg kg-1 to 6.0 μg kg-1 and from 1.0 μg kg-1 to 19.0 μg kg-1, respectively.This multi-residue analytical method could allow the rapid, efficient, sensitive and reliable determination of target carbamate pesticides in Flos carthami and other similar medicinal herbs.
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