Journal of Oleo Science
Online ISSN : 1347-3352
Print ISSN : 1345-8957
ISSN-L : 1345-8957
Chemistry and Organic Synthesis
High Speed and Reproducible Analysis of Nitrosamines by Capillary Electrophoresis with a Sulfonated Capillary
Atsushi TagaTomoko NishiYoshitaka HondaAtsushi SatoHiroyuki TerashimaKentaro SuzukiShuji KodamaKeito Boki
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2007 年 56 巻 8 号 p. 429-434

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Recently environmental control is regarded as important for good human health conditions, and toxic substances, including carcinogens and endocrine disruptors should be eliminated from our living environment. Hence easy quantitative methods are expected for a high level of environmental control. Our previous paper describes an easy quantitative analysis of nitrosamines (NAs) by capillary electrophoresis with an untreated fused silica capillary installed in an ordinary apparatus. In this paper, utilizing a novel type capillary column having sulfonated inner wall was investigated for improvements of separation performance and reproducibility. A sulfonated capillary causes fast and stabile electroosmotic flow because its inner wall is strongly negative charged. On a performance comparison of a sulfonated capillary with an untreated fused silica, analysis time reduction of c.a. forty percent was achieved, and relative standard deviations of migration times and peak responses were less than one third. In addition sample concentrations giving detection and quantitation limits were also reduced to a half.

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© 2007 by Japan Oil Chemists' Society
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