分析试验室
分析試驗室
분석시험실
ANALYTICAL LABORATORY
2009年
11期
97-101
,共5页
于彦彬%谭丕功%曲璐璐%王学松
于彥彬%譚丕功%麯璐璐%王學鬆
우언빈%담비공%곡로로%왕학송
PSA%分散固相萃取%液相色谱%柱后衍生%荧光法%氨基甲酸酯%蔬菜%水果
PSA%分散固相萃取%液相色譜%柱後衍生%熒光法%氨基甲痠酯%蔬菜%水果
PSA%분산고상췌취%액상색보%주후연생%형광법%안기갑산지%소채%수과
Thirteen carbamate pesticides%HPLC%Post-column derivatization%Vegetables%Fruits%PSA%Dispersive solid-phase extraction
建立了PSA分散固相萃取净化, 液相色谱柱后衍生荧光法测定蔬菜和水果中13种氨基甲酸酯农药的分析方法. 在建立的测定条件下, 13种氨基甲酸酯的含量与峰面积之间成线性关系, 相关系数大于0.994, 保留时间的相对标准偏差在0.03%~0.22%之间, 检测下限在2.00~2.28 μg/kg范围内. 西瓜、杏、茄子及胡萝卜中13种氨基甲酸酯的平均回收率在71.7%~110%之间, 相对标准偏差在0.68%~15%之间, 分析结果优于氨基柱固相萃取法.
建立瞭PSA分散固相萃取淨化, 液相色譜柱後衍生熒光法測定蔬菜和水果中13種氨基甲痠酯農藥的分析方法. 在建立的測定條件下, 13種氨基甲痠酯的含量與峰麵積之間成線性關繫, 相關繫數大于0.994, 保留時間的相對標準偏差在0.03%~0.22%之間, 檢測下限在2.00~2.28 μg/kg範圍內. 西瓜、杏、茄子及鬍蘿蔔中13種氨基甲痠酯的平均迴收率在71.7%~110%之間, 相對標準偏差在0.68%~15%之間, 分析結果優于氨基柱固相萃取法.
건립료PSA분산고상췌취정화, 액상색보주후연생형광법측정소채화수과중13충안기갑산지농약적분석방법. 재건립적측정조건하, 13충안기갑산지적함량여봉면적지간성선성관계, 상관계수대우0.994, 보류시간적상대표준편차재0.03%~0.22%지간, 검측하한재2.00~2.28 μg/kg범위내. 서과、행、가자급호라복중13충안기갑산지적평균회수솔재71.7%~110%지간, 상대표준편차재0.68%~15%지간, 분석결과우우안기주고상췌취법.
Determination of thirteen carbamate pesticides residues in vegetables and fruits by HPLC with PSA dispersive solid-phase extraction cleanup and post-column derivatization fluorescence detection is developed. Under the optimal determination conditions, the detection limits of thirteen carbamate pesticides are in the range of 2.00~2.28 jug/kg. There is a good linear relationship in the content range of determination. The correlation coefficients of thirteen carbamate pesticides are more than 0.99. The relative standard deviations of retention time are in the range of 0.03%~0.22% . It is simpler in sample handling by PSA dispersive solid-phase extraction than by NH2 column solid-phase extraction. There are little interference in matrix, and high quality results are obtained. The spiked average recoveries of thirteen carbamate pesticide residues ranged from 71.7%~110% with RSDs of 0.68%~15% for watermelon, apricot, eggplant and carrot, The results are very satisfactory.