![o-Tolidine: A new reagent for a simple nephelometric determination of anionic surfactants [An article from: Analytica Chimica Acta]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR3ICI.jpg)
o-Tolidine: A new reagent for a simple nephelometric determination of anionic surfactants [An article from: Analytica Chimica Acta]
Book Details
Author(s)J.G. March, M. Gual, A.D. Frontera
PublisherElsevier
ISBN / ASINB000RR3ICI
ISBN-13978B000RR3IC3
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Simple light scattering methods (batch, flow injection, sequential injection) for the determination of anionic active matter in detergents based on a novel reaction are reported. The methods are based on formation of a solid phase by association of anionic surfactants and protonated o-tolidine. Measurements were carried out with a conventional spectrofluorimeter at 400nm, and dodecylbenzene sulfonic acid (DBS) was selected as the reference anionic surfactant. Influence of the main parameters affecting the characteristics of the methods was studied by the univariate method. The optimized methods provided linear ranges from 1.6 to 300mgl^-^1 DBS with a repeatability within the 1.2-2.6% range. Reaction time for the manual method is 45s and sampling frequency for FIA and SIA were estimated as 68 and 20h^-^1, respectively. The methods were applied to commercial samples and results successfully compared with a volumetric recommended method. The proposed methods are simple, fast and neither require sample preparation nor any organic solvent.
Description:
Simple light scattering methods (batch, flow injection, sequential injection) for the determination of anionic active matter in detergents based on a novel reaction are reported. The methods are based on formation of a solid phase by association of anionic surfactants and protonated o-tolidine. Measurements were carried out with a conventional spectrofluorimeter at 400nm, and dodecylbenzene sulfonic acid (DBS) was selected as the reference anionic surfactant. Influence of the main parameters affecting the characteristics of the methods was studied by the univariate method. The optimized methods provided linear ranges from 1.6 to 300mgl^-^1 DBS with a repeatability within the 1.2-2.6% range. Reaction time for the manual method is 45s and sampling frequency for FIA and SIA were estimated as 68 and 20h^-^1, respectively. The methods were applied to commercial samples and results successfully compared with a volumetric recommended method. The proposed methods are simple, fast and neither require sample preparation nor any organic solvent.
