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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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