Journal
JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS
Volume 53, Issue 1-3, Pages 217-228Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0165-022X(02)00110-0
Keywords
triazines; gas chromatography; mass spectrometry; solid-phase extraction; drinking water
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The Liaoning Province in Eastern China has a prosperous economy and traditional agricultural background. Steadily increasing water demand implies the direct use of surface water for drinking water support and foodstuff production. Due to the extensive use, high persistence, water solubility and relatively weak adsorptivity, the chloro s-triazines contaminate the aquatic environment and are therefore regularly and most frequently detected in ground and surface water. Water sample enrichment procedures were performed by solid-phase extraction (SPE) using different materials. During a 1-year monitoring program on the Liao-He River, water sample enrichment was performed using C-18-SPE cartridges. These SPE cartridges showed low recoveries for the atrazine metabolites, although high triazine values were detected. Based on these results, a pilot sampling on drinking water in the Liao-He region was performed. This time, in addition to the C-18-SPE cartridges, a new polymer SPE sorbent made from a balance ratio of two monomers, the lipophilic divinylbenzene and the hydrophilic N-vinylpyrrolidone, was used. Both materials were characterized by establishing breakthrough curves for the investigated analytes and up to large volumes. (C) 2002 Elsevier Science B.V. All rights reserved.
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