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Determination of 32 Industrial Dyes in Seasoning Paste by Gel Permeation Chromatography and Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry |
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DOI:10.3969/j.issn.1004-4957.年份.月份 |
KeyWord:seasoning paste industrial dyes GPC UPLC-MS/MS |
Author | Institution |
郭新东,冼燕萍,罗海英,黄金凤,蔡玮红,吴玉銮 |
广州市质量监督检测研究院国家加工食品质量监督检验中心(广州) |
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Abstract: |
A method for the analysis of 32 industrial dyes in seasoning paste was developed by ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) combined with gel permeation chromatography(GPC) purification.The homogenized sample was extracted with acetonitrile,and then purified by GPC.The targeted compounds were detected by MS/MS system with eletrospray ionization(ESI) under multiple reaction monitoring(MRM) mode.The result indicated that the limits of quantitation(LOQs) of 32 dyes were in the range of 0.2-5 μg/kg.The linear correlation coefficients of 32 dyes were more than 0.994.The average recoveries ranged from 53% to 115% with RSDs of 3.9%-22.4%.This method was suitable for the identification and quantification of multi-component dyes in seasoning paste due to its simplicity,good purification and high sensitivity. |
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