Evaluation of Microwave-Assisted Extraction for the Analysis of Polychlorinated Biphenyls and Organochlorine Pesticides in Fish

Abstract The efficiency of microwave-assisted extraction (MAE) was evaluated for the analysis of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in fish. An isotope dilution method was used for quantification via analysis of the samples by gas chromatography and mass spectrometry. MAE solvent, temperature, and time were optimized, and observed concentrations were compared. The MAE results were also compared to those of other extraction techniques (Soxhlet extraction, pressurized liquid extraction, saponification, and homogenization). Concentrations of PCBs and OCPs obtained by MAE at 120C for 10 min were comparable to those by the other techniques. The results suggest that MAE can be used for the analysis of PCBs and OCPs in fish.

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Extraction of polycyclic aromatic hydrocarbons and organochlorine pesticides from soils: A comparison between Soxhlet extraction, microwave-assisted extraction and accelerated solvent extraction techniques

Analytica Chimica Acta ◽

10.1016/j.aca.2007.09.023 ◽

2007 ◽

Vol 602 (2) ◽

pp. 211-222 ◽

Cited By ~ 108

Author(s):

Wentao Wang ◽

Bingjun Meng ◽

Xiaoxia Lu ◽

Yu Liu ◽

Shu Tao

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Solvent Extraction ◽

Organochlorine Pesticides ◽

Aromatic Hydrocarbons ◽

Soxhlet Extraction ◽

Microwave Assisted Extraction ◽

Extraction Techniques ◽

Microwave Assisted ◽

Assisted Extraction ◽

Polycyclic Aromatic

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Comparison of pressurized liquid extraction and microwave assisted extraction for the determination of organochlorine pesticides in vegetables

Talanta ◽

10.1016/j.talanta.2006.07.012 ◽

2007 ◽

Vol 71 (3) ◽

pp. 1345-1351 ◽

Cited By ~ 65

Author(s):

M. Barriada-Pereira ◽

M.J. González-Castro ◽

S. Muniategui-Lorenzo ◽

P. López-Mahía ◽

D. Prada-Rodríguez ◽

...

Keyword(s):

Organochlorine Pesticides ◽

Liquid Extraction ◽

Pressurized Liquid Extraction ◽

Microwave Assisted Extraction ◽

Microwave Assisted ◽

Assisted Extraction

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Pressurized Liquid Extraction and Microwave-Assisted Extraction in the Determination of Organochlorine Pesticides in Fish Muscle Samples

Journal of AOAC International ◽

10.1093/jaoac/91.1.174 ◽

2008 ◽

Vol 91 (1) ◽

pp. 174-180 ◽

Cited By ~ 1

Author(s):

Mercedes Barriada-Pereira ◽

Iván Iglesias-García ◽

María J Gonzlez-Castro ◽

Soledad Muniategui-Lorenzo ◽

Purificación López-Maha ◽

...

Keyword(s):

Organochlorine Pesticides ◽

Fish Muscle ◽

Extraction Methods ◽

Liquid Extraction ◽

Pressurized Liquid Extraction ◽

Microwave Assisted Extraction ◽

Microwave Assisted ◽

Assisted Extraction ◽

Relative Standard

Abstract This paper describes a comparative study of 2 extraction methods, pressurized liquid extraction (PLE) and microwave-assisted extraction (MAE), for the determination of organochlorine pesticides (OCPs) in fish muscle samples. In both cases, samples were extracted with hexaneacetone (50 + 50), and the extracts were purified by solid-phase extraction using a carbon cartridge as the adsorbent. Pesticides were eluted with hexaneethyl acetate (80 + 20) and determined by gas chromatography with electron-capture detection. Both methods demonstrated good linearity over the range studied (0.0050.100 g/mL). Detection limits ranged from 0.029 to 0.295 mg/kg for PLE and from 0.003 to 0.054 mg/kg for MAE. For most of the pesticides, analytical recoveries with both methods were between 80 and 120, and the relative standard deviations were <10. The proposed methods were shown to be powerful techniques for the extraction of OCPs from fish muscle samples. Although good recovery rates were obtained with both extraction methods, MAE provided advantages with regard to sample handling, cost, analysis time, and solvent consumption. Acceptable validation parameters were obtained although MAE was shown to be more sensitive than PLE.

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