Determination of 9 Organotins in Food Contact Materials

被引：0

作者：

Qian C. ^{[1
]}

Zhang M. ^{[1
,2
]}

Gou X. ^{[1
]}

Bai Y. ^{[1
]}

Liu W. ^{[1
,2
]}

Gao X. ^{[1
,2
]}

Hu G. ^{[1
,2
]}

机构：

[1] Beijing Key Laboratory of Organic Materials Testing Technology and Quality Evaluation, Beijing Center for Physical and Chemical Analysis, Beijing

[2] Key Laboratory of Analysis and Testing Technology, Beijing Academy of Science and Technology, Beijing

来源：

Journal of Food Science and Technology (China) | 2021年 / 39卷 / 04期

关键词：

Dioctyltin dichloride; Food contact materials; Monobutyltin trichloride; Organotins; Tetrabutyltin;

D O I：

10.12301/j.issn.2095-6002.2021.04.019

中图分类号：

学科分类号：

摘要：

An analytical method for simultaneous determination of organotins in food contact materials with different uses by gas chromatography-mass spectrometry was established. The derivatization conditions and detection conditions were optimized and the detection types of organotins were also extended. On the basis of 4 kinds of organtins detection (dibutyltin dichloride, tributyltin chloride, dioctyltin dichloride and triphenyltin chloride) of the current standard of SN/T 3938-2014 "food contact materials-polymers-determination of the organotin compounds-gas chromatography-mass spectrometry", the detection types of organotins increased to 9 kinds (added: monobutyltin trichloride, tributyltin oxide, mono-n-octyltin trichloride, tetrabutyltin and tricyclohexyltin chloride), and the methodology validation experiments were completed. The good linear relationships were obtained with correlation coefficients of 0.999 3-0.999 5 in the range of 10-2 000 μg/L. The limits of detection and quantitation were 5-20 μg/kg and 15-71 μg/kg, respectively. The injection precisions were 1.07%-1.82%. The intermediate precisions were good, and the relative standard deviation (RSD) of the results detected by different laboratory technicians in different times were 1.52%-2.65%. The RSD of the detection results of durability were 1.51%-2.22%. In this study, 4 kinds of food contact materials with different uses were bought from the market and detected. These samples were made of PVC or plastic containing PVC, such as plastic wrap, heat preservation bag lining, place mat, and refrigerator storage box for dumplings, etc. The results showed that no organotins were detected in these 4 kinds of food contact materials. The recoveries and repeatability were good, the recoveries were 85.93%-117.39%, and the corresponding RSD were 1.12%-1.97%. The established method was highly sensitive, simple, reliable, and versatile, which could be applicable for the simultaneous detection of 9 kinds of organotins in food contact materials. © 2021, Editorial Department of Journal of Food Science and Technology. All right reserved.

引用

页码：163 / 170

页数：7

共 13 条

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