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Determination of sulfide with acidic permanganate chemiluminescence for development of deep-sea in-situ analyzers.

by Keiichi Fujimori, Kenta Tsujimoto, Takayo Moriuchi-Kawakami, Yasuhiko Shibutani, Masato Ueda, Takahiko Suzue, Hideshi Kimoto, Kei Okamura
Analytical sciences the international journal of the Japan Society for Analytical Chemistry ()
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A new chemiluminescence method is proposed for the determination of sulfide in seawater based on the chemiluminescence reaction between sulfide and an acidic permanganate solution. 3-Cyclohexylaminopropanesulfonic acid was used as a chemiluminescence enhancer. By use of this method, 1-150 M of sulfide could be determined in artificial seawater. The limit of detection was 0.17 M sulfide. We investigated the effects of salinity, water temperature, and interfering chemicals such as heavy-metal ions and organic matter. In addition, natural seawater spiked with sulfide was analyzed. The results showed that the CL method could be applied to a deep-sea sulfide analyzer.

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