Analysis of pyraflufen-ethyl residues in apples and soil by high-performance liquid chromatography
作者： Huili Wang , Jiye Hu , Hongxun Zhang , Changlong Chen , Xuyan Chen
DOI: 10.1080/03067310600922089
关键词: High-performance liquid chromatography 、 Detection limit 、 Cartridge 、 Uv detector 、 Chromatography 、 Chemistry 、 Orchard 、 Amine gas treating 、 Solid phase extraction 、 Pesticide
摘要: A new method was developed to analyse pyraflufen-ethyl residues by high-performance liquid chromatography (HPLC). The UV detector used for routine analysis and the ion-trap MS confirm identity of compound. residue levels pesticide its dissipation rate in apples soil an apple orchard Beijing were also studied. Primary secondary amine (PSA) octadecyl (C18) solid-phase extraction (SPE) cartridges applied determination soil, respectively. limit detection estimated be 1.6 ng, quantification samples 0.01 mg kg−1. Average recoveries between 90.1 102.1% at three spiking 0.01, 0.1, 1 mg kg−1, relative standard deviations less than 10% throughout whole recovery test. PSA column found provide effective cleanup extract pyraflufen-ethyl, C18 could remove greatest ...
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