岩矿测试2017，Vol.36Issue(2)：180-186,7.DOI:10.15898/j.cnki.11-2131/td.2017.02.012
高效液相色谱-串联质谱法同时测定食用植物油中多种有机锡化合物
Determination of a Variety of Organotin Compounds in Edible Vegetable Oil by Liquid Chromatography-Tandem Mass Spectrometry
摘要
Abstract
Most organotin compounds,which have been widely used in food packaging materials and production process show serious toxicity effects on human health.A high content of fat brought large matrix interference to the analysis and detection of edible vegetable oil.Methanol was selected as the extraction solvent,and the edible vegetable oil in low temperature was easily solidified.A simple and low-cost method based on high performance Liquid Chromatography-Tandem Mass Spectrometry for the simultaneous determination of four organotins in edible vegetable oil samples was developed.Four organotins including dibutyltin dichloride,tributyltin chloride,diphenyltin dichloride and triphenyltin chloride were simultaneously extracted with methanol using the low-temperature precipitation process.After being concentrated,the extracts were purified by matrix solid-phase dispersion using graphitized carbon black.Ethanol,methanol,and acetonitrile were investigated to extract organotins from edible vegetable oil samples.The recoveries of the four organotins extracted by liquid-liquid extraction and freezing extraction were also compared.The proposed method is comparable to,or even an improvement on the current national standard and related research.The adsorption abilities of some materials including primary secondary amine,alumina N,florisil,and graphitized carbon black were also studied.In order to evaluate the accuracy of the new method,the recovery was investigated.The ranges in the recoveries for the four organotins present at three levels ranged from 74.2％to 99.5％.Current work is comparable or better than those of national standards and the reported methods.The results show that the sample preparation method enables the simultaneous determination of the four organotins in peanut oil,soybean oil,corn oil,rape oil and edible blended oil samples.关键词
有机锡化合物/高效液相色谱-串联质谱法/食用植物油/低温冷冻提取/分散固相萃取Key words
organotins compounds/Liquid Chromatography-Tandem Mass Spectrometry/edible vegetable oils/dispersive-solid phase extraction/low-temperature precipitation extraction分类
化学化工引用本文复制引用
陈金保,柳英霞,李绪涛,郭岚..高效液相色谱-串联质谱法同时测定食用植物油中多种有机锡化合物[J].岩矿测试,2017,36(2):180-186,7.基金项目
江西省重点研发计划项目(20161BBG70063) （20161BBG70063）
