Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 975, Issue 1, Pages 219-227Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0021-9673(02)01326-2
Keywords
solid-phase extraction; supporter liquid membrane extraction; fruit juice; atrazine; triazines; pesticides
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A possibility of a combination of supported liquid membrane (SLM) and solid-phase extraction (SPE) for the determination of atrazine at microgram level in different type of fruit juices is presented. In comparison to SPE extraction from juice samples, the application of SLM-SPE enrichment provides much cleaner extracts and the possibility of lowering the limit of detection as low as 30 mug/l. However, it was also shown that by appropriate manipulation of SLM extraction conditions mainly flow-rate of donor phase and volume ratio between donor and acceptor phase, the level of detection can be further decreased to 10 mug/l. The results suggest that the application of SLM extraction prior to SPE is an alternative method for atrazine enrichment from complicated liquid matrices and could be used as routine method for the clean-up of such samples. (C) 2002 Elsevier Science B.V. All rights reserved.
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