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Title: Solid-phase microextraction of benzimidazole fungicides in environmental liquid samples and HPLC-fluorescence determination
Authors: Monzón, A. López
Moreno, D. Vega 
Padrón, M. E.Torres 
Ferrera, Z. Sosa 
Santana Rodríguez, José Juan 
UNESCO Clasification: 2301 química analítica
Keywords: Benzimidazole Fungicides
High-Performance Liquid Chromatography
Solid-Phase Microextraction
Water Analysis
Issue Date: 2007
Journal: Analytical and Bioanalytical Chemistry 
Abstract: Solid-phase microextraction (SPME) coupled with high-performance liquid chromatography (HPLC) with fluorescence detection was optimized for extraction and determination of four benzimidazole fungicides (benomyl, carbendazim, thiabendazole, and fuberidazole) in water. We studied extraction and desorption conditions, for example fiber type, extraction time, ionic strength, extraction temperature, and desorption time to achieve the maximum efficiency in the extraction. Results indicate that SPME using a Carboxen-polydimethylsiloxane 75 μm (CAR-PDMS) fiber is suitable for extraction of these types of compound. Final analysis of benzimidazole fungicides was performed by HPLC with fluorescence detection. Recoveries ranged from 80.6 to 119.6 with RSDs below 9% and limits of detection between 0.03 and 1.30 ng mL-1 for the different analytes. The optimized procedure was applied successfully to the determination of benzimidazole fungicides mixtures in environmental water samples (sea, sewage, and ground water).
ISSN: 1618-2642
DOI: 10.1007/s00216-006-1083-0
Source: Analytical and Bioanalytical Chemistry [ISSN 1618-2642], v. 387 (6), p. 1957-1963, (Marzo 2007)
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