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	2003/08
形態種別	学術論文
査読	査読有り
標題	In situ UV-VIS detection of the association of water-soluble anionic porphyrin and aromatic bases in aqueous solution at high temperatures using a capillary flow hydrothermal reactor system
執筆形態	単著
掲載誌名	Anal. Sci.
掲載区分	国内
巻・号・頁	19(8),pp.1199-1202
概要	The association between anionic water-soluble porphyrin and aromatic heterocyclic bases has been investigated to demonstrate the usefulness of a new in situ UV-VIS monitoring method of hydrothermal reactions. Spectral and absorbance changes in the presence of bases were possible to be detected by the new method at temperatures up to 150 ̊C. The association constants (Kass,1) were determined from the absorbance-base concentration curves. The logarithmic values of Kass,1 were proportional to the number of rings of the bases, but this relationship became ambiguous beyond 100 ̊C. This fact indicates that stacking between porphyrin and bases does indeed become weak at high temperatures.