Publication: A green analytical method using polyurethane foam for the extraction and determination of lauryl ether sulfate in personal care hygiene products
Loading...
Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Soc Brasileira Quimica
Type
Article
Access right
Abstract
A green methodology was developed for the extraction and determination of lauryl ether sulfate in raw materials and commercial liquid soap and shower gel samples. The method avoids the use of organic solvents, offering a simple, cheap, and safe analysis. The methodology is based on the sorption of an ionic pair consisting of a cationic dye and an anionic surfactant onto polyurethane foam. The experimental variables were optimized by chemometry to obtain the conditions that maximized extraction of the ionic pair. Digital imaging and spectrophotometry were used for quantification in the linear concentration range from 10.0 to 100 mg L-1. The limits of detection and quantification were, respectively, 2.71 and 9.28 mg L-1 for digital imaging, and 1.74 and 5.83 mg L-1 for spectrophotometry. The methods showed good results when applied to commercial samples, with recoveries in the range 96.8-103%.
Description
Keywords
Green chemistry, Lauryl ether sulfate, Anionic surfactant, Digital imaging, Spectrophotometry
Language
English
Citation
Journal Of The Brazilian Chemical Society. Sao Paulo: Soc Brasileira Quimica, v. 33, n. 7, p. 693-700, 2022.
