ISSN:
1612-1112
Keywords:
Column liquid chromatography
;
Electrochemical detection
;
Phenolics in water
;
On-line preconcentration
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The eleven priority, EPA phenolic pollutants were determined by liquid chromatography followed by two detectors in series; UV and electrochemical. Three different adsorbents, Envi-Carb (a carbon black) and two functionalized polymeric resins, Bond Elut PPL and another synthesized in our laboratory with an ocarboxybenzoyl moiety, were compared for solid-phase extraction (SPE) to detect lower concentrations of the eleven phenolics in natural waters. Higher recoveries were obtained using the functionalized polymeric adsorbents compared with Envi-Carb. When real samples were analysed, the synthetic adsorbent gave lower interference than Bond Elut PPL and phenol was determined at low levels with no humic and fulvic acid inter-ference when Na2SO3 was added. The linearity range for most compounds in tap water was 0.05–20 μg L−1 and the limits of detection were 〈35 ng L−1. Repeatability and reproducibility between days for real samples spiked at 0.1 μg L−1, expressed as relative standard deviation, were 〈8% and 10%, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02466578
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