Biomedical Chromatography 1997-01-01

Flow-injection analysis of cobalt(II) utilizing enhanced lophine chemiluminescence with hydroxylammonium chloride.

K Nakashima, H Yamasaki, R Shimoda, N Kuroda, S Akiyama, W R Baeyens

文献索引：Biomed. Chromatogr. 11(2) , 63-4, (1997)

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摘要

A rapid and convenient flow-injection method is described for the determination of Co(II). The method utilized the phenomenon that the lophine-Co(II)-H2O2 chemiluminescence (CL) reaction is enhanced in alkaline media by the addition of hydroxylammonium chloride. The calibration curve was linear over the range 2 x 10(-7) to 2 x 10(-5) M with a detection limit of 4.5 x 10(-8) M (0.9 pmol) at a signal-to-noise ratio of 2. The method was applied to the assay of cyanocobalamin in commercially available eye lotions.

相关化合物

  • 2,4,5-三苯基咪唑

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