title: Determination of sulfide with acidic permanganate chemiluminescence for development of deep-sea in-situ analyzers.
abstract: 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 µM of sulfide could be determined in artificial seawater. The limit of detection was 0.17 µM 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.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi, Osaka 535-8585, Japan. fujimori@chem.oit.ac.jp
authors.forename: Keiichi
authors.initials: K
authors.lastname: Fujimori
authors.forename: Kenta
authors.initials: K
authors.lastname: Tsujimoto
authors.forename: Takayo
authors.initials: T
authors.lastname: Moriuchi-Kawakami
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Shibutani
authors.forename: Masato
authors.initials: M
authors.lastname: Ueda
authors.forename: Takahiko
authors.initials: T
authors.lastname: Suzue
authors.forename: Hideshi
authors.initials: H
authors.lastname: Kimoto
authors.forename: Kei
authors.initials: K
authors.lastname: Okamura