The Determination of Anionic Surfactants in Water by an Azure A Method

Publisher Website
Google Scholar
Abstract
Various methods for the analysis of anionic surfactants (such as LAS and ABS) in aqueous solution were reviewed, evaluated, and/or assessed. Emphasis was placed on the development of field test kits based on a modified colorimetric method involving the use of Azure A. The simplified and improved Azure A Method requires only 6 ml of aqueous reagent and 25 ml of chloroform for analyzing one sample. The principles, analytical procedures and limitations of the method are described in detail. A field test kit based on the use of a portable spectrophotometer (or photometer), is proposed for use by the personnel with limited training in chemistry.