Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1242655 | Talanta | 2010 | 5 Pages |
Abstract
Ammonium ion was colorized by means of a diazo coupling reaction with 2-phenylphenol, where the color development reaction was conducted within 3Â min by using boric acid as a catalyst. The resulting colored solution (0.5Â ml) was supplied by suction to a detecting tube consisting of a nonwoven fabric test strip (2Â mm wide, 1Â mm thick, 150Â mm long) impregnated with benzylcetyldimethylammonium chloride in a stripe pattern and enclosed in a heat-shrinkable tube. When the colored solution was supplied to the detecting tube, blue zebra-bands formed, and the ammonium concentration was determined by counting the number of zebra-bands. The detection range was 1-20Â mg-NÂ lâ1. Ammonium ion in actual domestic wastewater samples was successfully detected by means of this method.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Tatsuaki Hori, Keizou Niki, Yoshiaki Kiso, Tatsuo Oguchi, Yuki Kamimoto, Toshiro Yamada, Masahiro Nagai,