Abstract
An automated colourimetric procedure using ammonium cobaltothiocyanate as the colour-producing reagent was shown to be suitable for the determination of non-ionic surfactants in water. The complex formed by this reagent and non-ionic surfactants is extracted into chloroform and its concentration is measured absorptiometrically at 620 nm. Samples were analysed at a rate of 3 h −1 by a modified AutoAnalyzer system. The limit of detection was approximately 0.5 mg l −1, and the standard deviation at the 10 mg l −1 level was 0.2 mg l −1. The technique has limitations but forms a basis for further investigation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
