MSPD-GC法检测竹笋中有机磷类农药残留  

Multi-determination of organophosphorus pesticide residues in bamboo shoots by MSPD-GC

作　　者：沈丹玉[1] 刘毅华[1] 汤富彬[1] 钟冬莲[1] 莫润宏[1] 丁明[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所,国家林业局经济林产品质量检验检测中心(杭州),浙江富阳311400

出　　处：《食品与发酵工业》2013年第9期185-188,共4页Food and Fermentation Industries

基　　金：中央级公益性科研院所基本科研业务费专项资金(RISF61252);浙江省公益技术应用研究项目(2013C32106)

摘　　要：建立了同时检测竹笋中14种有机磷农药的基质固相分散-气相色谱（MSPD—GC）分析方法。竹笋样品经弗罗里硅土基质固相分散技术净化，用V（丙酮）：V（乙腈）=1：1淋洗，GC-FPD检测，基质标准曲线外标法定量。在0．05、0．50和1．00mg／kg的添加水平下，14种有机磷农药的回收率为77．54％～114．16％，相对标准偏差为1．23％-5．01％，本方法的检出限为0．008—0．024mg／kg。An analytical method was developed for the simultaneous determination of 14 organophosphorus pesti- cides in bamboo shoots by using matrix solid phase dispersion and Gas chromatography determination （MSPD-GC）. Bamboo shoot samples were purified by MSPD and elated by acetone-acetonitrile （ 1 ： 1, V/V） were determined by gas chromatography（ flame photometric detector）. Matrix-matched calibrations were respectively used to quantify the residue concentrations in bamboo shoot samples. The recoveries were in the range of 77.54% - 114. 16% and the relative standard deviation （RSDs） were 1.23% -5.01% at 0. 05mg/kg, 0.50mg/kg and 1.00mg/kg three spiked levels for all analysis. The limits of detection （LOD） were between 0. 008 mg/kg and 0. 024 mg/kg.

关 键 词：竹笋 基质固相分散 气相色谱 有机磷农药 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程] O657.3[轻工技术与工程—食品科学与工程]