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Fluorescence technique for the characterization of natural organic matter in river water

Ahmad, U. K. and Ujang, Zaini and Yusop, Z. and Fong, T. L. (2002) Fluorescence technique for the characterization of natural organic matter in river water. Water Science and Technology, 46 (9). 117-125 . ISSN 0273-1223

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Abstract

The complex nature of natural organic matter (NOM), and the impact of this matter on drinking water quality have necessitated the characterization studies of NOM. A fluorescence technique for the characterization of NOM in Malaysian river water is reported. Water samples from several river sampling sites were collected and concentrated using a low-pressure reverse osmosis (LPROM). Solid phase extraction (SPE) using C18 extraction cartridges were used to fractionate the water samples into humic and non-humic fractions. To differentiate and classify various types of humic substances, fluorescence was applied in emission, excitation and in synchronous-scan modes. A synchronous spectral profile was found to be able to differentiate humic and fulvic acids better than the emission or excitation spectra. Synchronous excitation spectra showed different spectral patterns for the water samples due to different origin. All water samples showed that presence of both fulvic and humic acids

Item Type:Article
Uncontrolled Keywords:Potable water; rivers; reverse osmosis; fluorescence; sampling
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:2777
Deposited By: Ms Zalinda Shuratman
Deposited On:14 May 2007 00:43
Last Modified:01 Jun 2010 03:05

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