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Determination of trace amounts of cobalt(II) by flow injection-solid phase spectrometry (FI-SPS) with 5-Br-PADAB.

作者信息

Matsuoka Shiro, Shiota Nobutoshi, Yoshimura Kazuhisa

机构信息

Department of Environmental Science, Faculty of Science, Niigata University, Ikarashi, Niigata 950-2181, Japan.

出版信息

Anal Sci. 2006 Jan;22(1):177-81. doi: 10.2116/analsci.22.177.

DOI:10.2116/analsci.22.177
PMID:16429799
Abstract

Flow injection-solid phase spectrometry (FI-SPS) has been applied to the determination of cobalt(II) in water samples. The complex formed between cobalt and 5-Br-PADAB was on-line protonated and concentrated on an AG 50W-X2 cation-exchanger in a flow-through cell. The increase in absorbance caused by the accumulation of the complex in the resin was continuously measured. The interference by copper could be effectively eliminated by using EDDP as a masking agent. The detection limit was 40 ng dm(-3) with a 4.0 cm3 sample solution.

摘要

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