カワムラ　クニオ   KAWAMURA Kunio   川村　邦男    所属   広島修道大学  人間環境学部    職種   教授
言語種別	英語
発行・発表の年月	2011/05
形態種別	学術論文
査読	査読有り
標題	Flow injection analysis combined with a hydrothermal flow reactor: application to kinetic determination of trace amounts of iridium using a water-soluble porphyrin
執筆形態	共著
掲載誌名	Talanta
掲載区分	国外
出版社・発行元	Corresponding author
巻・号・頁	84(5),pp.1318-1322
著者・共著者	◎Kunio Kawamura, Keisuke Ikoma, Shukuro Igarashi, Hideaki Hisamoto, Toshio Yao
概要	A new type of flow injection analysis (FIA) system combined with an extremely high temperature reactor, namely hydrothermal flow injection analysis (HT-FIA), has been successfully constructed for the first time. To demonstrate the potential of HT-FIA, the catalytic activity of Ir(IV) for the degradation of a water-soluble porphyrin, 5,10,15,20-tetraphenyl-21H,23H-porphinetetrasulfonic acid (TPPS), was applied for the determination of trace amounts of Ir(IV). Although the indicator reaction is very slow at room temperature, HT-FIA system enables to accelerate the reaction. A linear calibration curve was acquired at 10−8 M level of Ir(IV) and the interferences of platinum group metal ions were examined. The detection limit of Ir(IV) was 5.8 × 10−9 M and a fairly high-throughput analysis, of which more than 30 samples can be analyzed within 80 min, was achieved.