Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/61596
Title: Development of sequential injection-lab-at-valve (SI-LAV) micro-extraction instrumentation for the spectrophotometric determination of an anionic surfactant
Authors: Rodjana Burakham
Jaroon Jakmunee
Kate Grudpan
Keywords: Chemistry
Issue Date: 1-Jan-2006
Abstract: The development of instrumentation for sequential injection analysis with a "lab-at-valve" (SIA-LAV) micro-extraction system is presented. The extractive determination of an anionic surfactant using methylene blue was selected as a model. Sample, reagents and organic solvent were sequentially aspirated into an extraction coil connected to the center of a selection valve, where extraction took place by flow reversal. The aqueous and organic phases were separated in a LAV unit attached to one port of the valve. The LAV unit situated a fiber-optic spectrophotometer to monitor the absorbance change of the extract product in the organic phase. The developed SIA-LAV system offers an alternative micro-total analysis system for automated micro-extraction. 2006 © The Japan Society for Analytical Chemistry.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=30744434145&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61596
ISSN: 09106340
Appears in Collections:CMUL: Journal Articles

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