Determination of Organochlorine Pesticides in Sediments from Authie Bay Using Microwave Assisted Solvent Extraction

2002 ◽  
Vol 49 (4) ◽  
pp. 585-592 ◽  
Author(s):  
Nicolas Le Calvez
Keyword(s):  
Solvent Extraction ◽  
Organochlorine Pesticides ◽  
Microwave Assisted

Determination of organochlorine pesticides in horticultural samples by microwave assisted extraction followed by GC-ECD

2005 ◽  
Vol 85 (4-5) ◽  
pp. 325-333 ◽  
Author(s):  
Mercedes Barriada-Pereira ◽  
María José González-Castro ◽  
Soledad Muniategui-Lorenzo ◽  
Purificación López-Mahía ◽  
Darío Prada-Rodríguez ◽  
...  
Keyword(s):  
Organochlorine Pesticides ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction

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

Talanta ◽  
2007 ◽  
Vol 71 (3) ◽  
pp. 1345-1351 ◽  
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

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

2008 ◽  
Vol 91 (1) ◽  
pp. 174-180 ◽  
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.

scholarly journals Microwave-Assisted Extraction and Accelerated Solvent Extraction with Ethyl Acetate–Cyclohexane before Determination of Organochlorines in Fish Tissue by Gas Chromatography with Electron-Capture Detection

2000 ◽  
Vol 83 (6) ◽  
pp. 1334-1344 ◽  
Author(s):  
Marion Weichbrodt ◽  
Walter Vetter ◽  
Bernd Luckas
Keyword(s):  
Solvent Extraction ◽  
Fish Tissue ◽  
Solvent Mixture ◽  
Organochlorine Compounds ◽  
Water Removal ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Quantitative Extraction

Abstract Focused open-vessel microwave-assisted extraction (FOV–MAE), closed-vessel microwave-assisted extraction (CV–MAE), and accelerated solvent extraction (ASE) were used for extraction before determination of organochlorine compounds (polychlorinated biphenyls, DDT, toxaphene, chlordane, hexachlorobenzene, hexachlorocyclohexanes, and dieldrin) in cod liver and fish fillets. Wet samples were extracted without the time-consuming step of lyophilization or other sample-drying procedures. Extractions were performed with the solvent mixture ethyl acetate–cyclohexane (1 + 1, v/v), which allowed direct use of gel-permeation chromatography without solvent exchange. For FOV–MAE, the solvent mixture removed water from the sample matrix via azeotropic distillation. The status of water removal was controlled during extraction by measuring the temperature of the distillate. After water removal, the temperature of the distillate increased and the solvent mixture became less polar. Only the pure extraction solvent allowed quantitative extraction of the organochlorine compounds. For CV–MAE, water could not be separated during the extraction. For this reason, the extraction procedure for wet fish tissue required 2 extraction steps: the first for manual removal of coextracted water, and the second for quantitative extraction of the organochlorine compounds with the pure solvent. Therefore, CV–MAE is less convenient for samples with high water content. For ASE, water in the sample was bound with Na2SO4. The reproducibility for each technique was very good (relative standard deviation was typically <10%); the slightly varying levels were attributed to deviations during sample cleanup and the generally low levels.

Development of a Microwave-Assisted Extraction Method for the Determination of Organochlorine Pesticides in Mussel Tissue

2013 ◽  
Vol 7 (6) ◽  
pp. 1271-1277 ◽  
Author(s):  
Emmanouil-Nikolaos Papadakis ◽  
Archontoula Kyrgidou ◽  
Zisis Vryzas ◽  
Euphemia Papadopoulou-Mourkidou
Keyword(s):  
Organochlorine Pesticides ◽  
Extraction Method ◽  
Microwave Assisted Extraction ◽  
Mussel Tissue ◽  
Microwave Assisted ◽  
Assisted Extraction
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