Determination of thiamethoxam, triadimenol and deltamethrin in pineapple using SLE-LTP extraction and gas chromatography.

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Title: Determination of thiamethoxam, triadimenol and deltamethrin in pineapple using SLE-LTP extraction and gas chromatography.
Authors: Morais, Elisa Helena da Costa1 elisahelenabq@yahoo.com.br, Rodrigues, Alessandra Aparecida Zinato1, Queiroz, Maria Eliana Lopes Ribeiro de1, Neves, Antônio Augusto1, Morais, Paulo Henrique Damasceno1
Source: Food Control. Aug2014, Vol. 42, p9-17. 9p.
Subjects: Thiamethoxam, Triadimefon, Deltamethrin, Pineapple, Gas chromatography, Pesticides
Abstract: Abstract: In this work, a simple and low cost method based on solid–liquid extraction with low temperature partitioning (SLE–LTP) was optimized and validated for the residue analyses of the pesticides thiamethoxam, triadimenol and deltamethrin in pineapple samples using gas chromatography with electron capture detector (GC-ECD). The SLE-LTP technique was proven satisfactory with recoveries up to 90% and linear chromatographic response for the analytes, ranging from 0.04 to 1.30 μg g−1 with correlation coefficients above 0.99. The limits of quantification for the pesticides were lower than the allowed maximum limits of residues established for these pesticides in pineapple by the European Union. [Copyright &y& Elsevier]
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Database: Engineering Source
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Abstract:Abstract: In this work, a simple and low cost method based on solid–liquid extraction with low temperature partitioning (SLE–LTP) was optimized and validated for the residue analyses of the pesticides thiamethoxam, triadimenol and deltamethrin in pineapple samples using gas chromatography with electron capture detector (GC-ECD). The SLE-LTP technique was proven satisfactory with recoveries up to 90% and linear chromatographic response for the analytes, ranging from 0.04 to 1.30 μg g−1 with correlation coefficients above 0.99. The limits of quantification for the pesticides were lower than the allowed maximum limits of residues established for these pesticides in pineapple by the European Union. [Copyright &y& Elsevier]
ISSN:09567135
DOI:10.1016/j.foodcont.2014.01.024