Determination of aromatic amines in food products and composite food packaging bags by capillary electrophoresis coupled with transient isotachophoretic stacking
文献类型：期刊论文
| 作者 | Wang, Xiaoyu1; Chen, Yi1,2 |
| 刊名 | JOURNAL OF CHROMATOGRAPHY A
 |
| 出版日期 | 2009-10-23 |
| 卷号 | 1216期号:43页码:7324-7328 |
| 关键词 | Capillary Electrophoresis In-line Stacking Food Analysis Aromatic Amines |
| ISSN号 | 0021-9673 |
| DOI | 10.1016/j.chroma.2009.05.089 |
| 英文摘要 | A capillary electrophoretic method was explored to assay aromatic amines in food samples. With an inline-coupled transient isotachophoretic stacking approach, the method has yielded about 200-fold improvement of sensitivity in UV detection of three primary aromatic amines and melamine. By using K(+) as a leading ion and Tris(+) as a terminating ion, a plug of 10 cm (equivalent to 0.44 mu L) sample solution was allowed to introduce into a 60 cm (50 cm effective) capillary for separation, giving limits of detection down to 2.0 x 10(-8) M. Baseline separation was achieved within 10 min, with relative standard deviation of 0.41-0.75% (intra-day) or 1.2-1.5% (inter-day) for migration time and 3.8-4.3% (intra-day) or 5.2-6.7% (inter-day) for peak area. The method was directly applicable to assaying the melamine in powder milk samples, with recovery in between 92.0% and 107.1%. The method could also be applied to the analysis of trace primary aromatic amines migrating from composite food packaging bags after combination of a 10-fold off-line concentration step, with limit of detection down to less than 1 mu g/L By this method, 4,4'-diaminophenylmethane and 2,4-diaminotoluene were thus found in three types of composite food packaging bags. (C) 2009 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000271108800024 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67637]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Lab Analyt Chem Life Sci, Beijing 100190, Peoples R China 2.Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiaoyu,Chen, Yi. Determination of aromatic amines in food products and composite food packaging bags by capillary electrophoresis coupled with transient isotachophoretic stacking[J]. JOURNAL OF CHROMATOGRAPHY A,2009,1216(43):7324-7328. |
| APA | Wang, Xiaoyu,&Chen, Yi.(2009).Determination of aromatic amines in food products and composite food packaging bags by capillary electrophoresis coupled with transient isotachophoretic stacking.JOURNAL OF CHROMATOGRAPHY A,1216(43),7324-7328. |
| MLA | Wang, Xiaoyu,et al."Determination of aromatic amines in food products and composite food packaging bags by capillary electrophoresis coupled with transient isotachophoretic stacking".JOURNAL OF CHROMATOGRAPHY A 1216.43(2009):7324-7328. |
入库方式： OAI收割
来源：化学研究所
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