Journal
FOOD CHEMISTRY
Volume 143, Issue -, Pages 192-198Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2013.07.101
Keywords
Microwave assisted water steam extraction; Solid phase extraction; Carbamate; Rice; Green pretreatment method
Funding
- Natural Science Foundation of China [20875037]
- Development Program of the Ministry of Science and Technology of Jilin Province [20120327]
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This paper presented a fast, simple and green sample pretreatment method for the extraction of 8 carbamate pesticides in rice. The carbamate pesticides were extracted by microwave assisted water steam extraction method, and the extract obtained was immediately applied on a C-18 solid phase extraction cartridge for clean-up and concentration. The eluate containing target compounds was finally analysed by high performance liquid chromatography with mass spectrometry. The parameters affecting extraction efficiency were investigated and optimised. The limits of detection ranging from 1.1 to 4.2 ng (-1) were obtained. The recoveries of 8 carbamate pesticides ranged from 66% to 117% at three spiked levels, and the inter- and intra-day relative standard deviation values were less than 9.1%. Compared with traditional methods, the proposed method cost less extraction time and organic solvent. (C) 2013 Elsevier Ltd. All rights reserved.
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