Abstract − Analytical Sciences, 19(10), 1445 (2003).
A New Water-soluble Chromogenic Indicator: An Application to the Determination of Chlorine in Aqueous Solutions
Ryo SAKAMOTO,* Daikichi HORIGUCHI,* Takashi IKEGAMI,* Munetaka ISHIYAMA,* Masanobu SHIGA,* Kazumi SASAMOTO,* and Yoshiki KATAYAMA**
*Dojindo Laboratories, Tabaru 2025-5, Mashiki-machi, Kumamoto 861-2202, Japan
**Department of Chemistry and Biochemistry, Kyushu University, Fukuoka 812-8581, Japan
**Department of Chemistry and Biochemistry, Kyushu University, Fukuoka 812-8581, Japan
A novel compound, N,N'-bis(2,4-di-sulfobenzyl)tolidine tetrasodium salt (SBT), was synthesized for use as a chromogenic indicator for oxidizing substances, and its applicability to the colorimetric determination of chlorine in water was examined.
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