CE Analysis of Cephalosporins in Environmental Waters |
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Authors: | P Puig F Borrull C Aguilar M Calull |
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Institution: | (1) Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, Marcel·lí Domingo, 43007 Tarragona, Spain |
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Abstract: | This study investigates an off-line solid phase extraction (SPE) for improving the sensitivity in the capillary electrophoretic
(CE) analysis of four cephalosporins. Two sorbents—LiChrolut-C18 and Oasis HLB—were used in a SPE process to detect cephalosporins in natural waters (tap, river and hospital sewage) and
their performances were compared. By using Oasis HLB sorbent higher recoveries for river water were obtained (94–107% when
500 mL of sample were analyzed). The off-line SPE–CZE method was validated for river water with good detection limits (3 μg L−1) and the linearity ranged between 5 and 200 μg L−1. |
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Keywords: | Capillary electrophoresis Solid phase extraction Antibiotics Cephalosporins in environmental water |
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