Development of Sequential Injection-Lab-at-Valve (SI-LAV) Micro-Extraction Instrumentation for the Spectrophotometric Determination of an Anionic Surfactant
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Accession number;06A0028779
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| Title;Development of Sequential Injection-Lab-at-Valve (SI-LAV) Micro-Extraction Instrumentation for the Spectrophotometric Determination of an Anionic Surfactant |
| Author;
BURAKHAM RODJANA
(Khon Kaen Univ., Khon Kaen, Tha)
JAKMUNEE JAROON
(Chiang Mai Univ., Chiang Mai, Tha)
GRUDPAN KATE
(Chiang Mai Univ., Chiang Mai, Tha)
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Journal Title;Anal Sci
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Journal Code:G0673B
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ISSN:0910-6340
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VOL.22;NO.1;PAGE.137-140(2006)
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| Figure&Table&Reference;FIG.4, TBL.2, REF.14 |
| Pub. Country;Japan |
| Language;English |
| 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. (author abst.) |
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