Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/94197
Title: Membrane Solid-Phase Extraction with Closed Vessel Microwave Elution for the Determination of Phenolic Compounds in Aqueous Matrices
Authors: Chee, K.-K.
Wong, M.-K. 
Lee, H.-K. 
Keywords: Closed vessel microwave elution
Liquid chromatography
Microwave extraction
Phenolics
Solid phase extraction
Issue Date: 1997
Citation: Chee, K.-K.,Wong, M.-K.,Lee, H.-K. (1997). Membrane Solid-Phase Extraction with Closed Vessel Microwave Elution for the Determination of Phenolic Compounds in Aqueous Matrices. Mikrochimica Acta 126 (1--2) : 97-104. ScholarBank@NUS Repository.
Abstract: Preconcentration of phenolic compounds was carried out with Empore C18 membrane disks, which were eluted with a closed-vessel microwave extraction system. The optimum microwave-elution conditions were obtained by optimizing the elution solvent, elution temperature, duration of elution and volume of elution solvent. The recoveries of eleven phenolic compounds spiked at 10 and 500 μg/L levels into water, using the optimum conditions, were all above 85% with relative standard deviations between 4.0 and 10.0%, except for phenol and 4-nitrophenol. Extraction of an industrial waste water sample suspected of containing phenolic compounds by SPECVME showed similar recoveries of phenol (the only phenolic compound detected) when compared with LLE and C18 SPE cartridge techniques. Analysis of phenolic compounds was carried out using liquid chromatography coupled to a UV detection system.
Source Title: Mikrochimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/94197
ISSN: 00263672
Appears in Collections:Staff Publications

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