期刊
SPECTROSCOPY-AN INTERNATIONAL JOURNAL
卷 21, 期 2, 页码 135-141出版社
IOS PRESS
DOI: 10.1155/2007/704349
关键词
sudan I; chemiluminescence; luminol; flow injection
A novel chemiluminescence method for the assay of sudan I was designed using flow injection with chemiluminescence detection. The proposed method was based on the increment effect of sudan I on the chemiluminescence intensity in the luminol-KIO4 system. The increment of chemiluminescence intensity was correlated with the sudan I concentration in the range from 0.1 to 10 pg ml(-1), and the determination could be performed in 0.5 min in flow rate of 2 ml min(-1), including sampling and washing, giving a throughput of 120 h(-1) with a relative standard deviation of less than 5.0%. The method had been successfully applied to the assay of sudan I in Pixian douban, Golden mark guilin chilli sauce and Golden mark satay sauce, and the recovery was 90.0-103.8%.
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