期刊
TETRAHEDRON LETTERS
卷 47, 期 39, 页码 7093-7096出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2006.07.080
关键词
colorimetric detection; cysteine; homocysteine
A simple colorimetric method for the determination of cysteine and homocysteine has been developed. The reaction of the azo dyes containing an aldehyde group with cysteine or homocysteine afforded very stable derivatives thiazolidines or thiazinanes under neutral pH conditions. The method is selective and sensitive for cysteine and homocysteine detection without the interference of other amino acids. Importantly, the recognition of Cys and Hcy could be observed by naked eyes. (c) 2006 Elsevier Ltd. All rights reserved.
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