78474-83-6Relevant academic research and scientific papers
Spectrophotomeric Determination of Sodium 4-Dodecylbenzenesulfonate with 1-(N-Methylpyridinium-4-yl-azo)-4-(4-diethylaminophenylazo)naphthalene Iodide
Higuchi, Keiro,Shimoishi, Yasuaki,Miyata, Haruo,Toei, Kyoji
, p. 621 - 622 (1982)
A new reagent, 1-(N-methylpyridinium-4-yl-azo)-4-(4-diethylaminophenylazo)naphthalene iodide, can react with sodium 4-dodecylbenzenesulfonate to show a color change in an aqueous phase in the presence of iodide ion.The calibration graph is straight line up to 1.2*10-5 M (1 M = 1 mol dm-3), ε = 3.25*104 l mol-1cm-1 at 580 nm.
DIRECT SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF ALKYLBENZENESULFONATE WITH 1-(4-N-METHYLPYRIDINIUMAZO)-4-(4-AMINOPHENYLAZO) NAPHTHALENE IODIDE
Higuchi, Keiro,Shimoishi, Yasuaki,Miyata, Haruo,Toei, Kyoji
, p. 711 - 712 (2007/10/02)
A new reagent, 1-(4-N-methylpyridiniumazo)-4-(4-aminophenylazo)naphthalene iodide, can react with sodium alkylbenzenesulfonate to show a color change in an aqueous medium.The calibration graph is straight line over the range from 8E-6 to 3.0E-5 M of sodium dodecylbenzenesulfonate.The practical molar absorptivity is 1.8E4 l mol-1 cm-1 at 594 nm.
