Journal of South China University of Technology(Natural Science) >

2015 , Vol. 43 >Issue 2: 8 - 12

DOI: https://doi.org/10.3969/j.issn.1000-565X.2015.02.002

Food Science & Technology

Determination of 4-Methylimidazole Content via Ion Chromatography-Mass Spectrometry

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  • School of Light Industry and Food Sciences，South China University of Technology，Guangzhou 510640，Guangdong，China
于淑娟(1955-)，女，教授，博士生导师，主要从事制糖工程、碳水化合物分子修饰的研究．

Received date: 2014-05-21

  Revised date: 2014-07-10

  Online published: 2014-12-31

Supported by

Supported by the National Natural Science Foundation of China(31271889)and the Science and Technology Pro-ject Item of Guangdong Province(2014B020205001)

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Abstract

In order to quantitatively and qualitatively determine the content of 4-methylimidazole in samples with simplicity，convenience and accuracy，a new method using cation exchange chromatography-mass spectrometry was developed． This method，with a detection limit of 0． 25μg/L，a linear range varying from 2． 5 to 200μg/L，a linear correlation coefficient of 0． 9997，a relative standard deviation of 2． 32% ～ 4． 25% and a recovery varying from 92． 7% to 96． 3%，was then used to test the 4-methylimidazole in caramel pigment，cola and some other samples．The results show that the proposed method is of high separation degree，good sensitivity，accurate quantification，high precision and low detection limit．

Key words： ion chromatography-mass spectrometry; 4-methylimidazole; caramel pigment; Maillard reaction; sen-sitivity; detection limit

Cite this article

Yu Shu-juan Liu Ding-bo Xu Xian-bing Wu Xin-lan . Determination of 4-Methylimidazole Content via Ion Chromatography-Mass Spectrometry[J]. Journal of South China University of Technology(Natural Science), 2015 , 43(2) : 8 -12 . DOI: 10.3969/j.issn.1000-565X.2015.02.002

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