Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/62137
Title: Exploiting sequential injection analysis with lab-at-valve (LAV) approach for on-line liquid-liquid micro-extraction spectrophotometry
Authors: Rodjana Burakham
Somchai Lapanantnoppakhun
Jaroon Jakmunee
Kate Grudpan
Keywords: Chemistry
Issue Date: 15-Dec-2005
Abstract: Sequential injection analysis (SIA) with lab-at-valve (LAV) approach for on-line liquid-liquid micro-extraction has been exploited. Sample, reagent and organic solvent were sequentially aspirated into a coil attached to a central port of a conventional multiposition selection valve, where the extraction process was performed. The aqueous and organic phases were separated in a conical separating chamber LAV unit attached at one port of the valve. The organic phase containing extracted product was then monitored spectrophotometrically. The system offers a novel alternative on-line automated extraction in a micro-scale and has been successfully demonstrated for the assays of diphenhydramine hydrochloride (DPHH) in pharmaceutical preparations and anionic surfactant in water samples. © 2005 Published by Elsevier B.V.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=27744511664&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/62137
ISSN: 00399140
Appears in Collections:CMUL: Journal Articles

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