Spectrophotometric determination of cationic surfactants in water with an anionic dye-Disulphine Blue.
-
- NAMIKI Hiroshi
- Department of Chemistry, Faculty of Education, Yokohama National University
Bibliographic Information
- Other Title
-
- 陰イオン性色素ダイサルフィンブルーを用いる水中の陽イオン界面活性剤の吸光光度定量
- インイオンセイ シキソ ダイサルフィン ブルー オ モチイル スイチュウ ノ
Search this article
Abstract
After removal of anionic surfactants by an ion-exchange technique, cationic surfactants were extracted as their chlorides into chloroform. Ion pairs of the cationic surfactants and Disulphine Blue formed in the chloroform phase were measured spectrophotometrically as follows : A 50 ml of a sample solution containing cationic surfactants (above 1 μg as Zephiramine) is passed through an anion-exchange column (Amberlite IRA-401, 15 ml) at a rate of 1 ml/min and the column is washed with 50 ml of 50% methanol. Five milliliters of sodium chloride solution (10%) and 10 ml of chloroform are added to the eluate. The mixture is then shaken for 1 min to extract cationic surfactants into chloroform. The chloroform phase is shaken for 1 min with a mixture of 10 ml of citrate buffer solution (0.1 M, pH 5), 5 ml of sodium sulfate solution (0.4 M) and 1.5 ml of Disulphine Blue solution (1.17×10-4 M). The absorbance of the chloroform phase is measured at 628 nm. Cationic surfactants in water above 20 μg/1 could be determined by the proposed method.
Journal
-
- BUNSEKI KAGAKU
-
BUNSEKI KAGAKU 39 (12), 845-847, 1990
The Japan Society for Analytical Chemistry
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282679028910976
-
- NII Article ID
- 110002906073
-
- NII Book ID
- AN00222633
-
- COI
- 1:CAS:528:DyaK3MXhtVymtb8%3D
-
- NDL BIB ID
- 3693822
-
- ISSN
- 05251931
- http://id.crossref.org/issn/05251931
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
-
- Abstract License Flag
- Disallowed