Applications of sample preparation techniques in the analysis of pesticides and PCBs in food.

摘要: Pesticides and polychlorinated biphenyls (PCBs) are found in various parts of the environment quite small concentrations, but they accumulate thus become a threat to human health life. A review is focused on application some popular techniques for sample preparation analysis these compounds food. Even with emergence advanced final analysis, complex matrices, such as food, require extensive extraction purification. Traditional time consuming large amount solvents, which expensive, generate considerable waste, contaminate can enrich it analytes. There have been many proposed meet requirements connected multiplicity Optimal reduce time, sources error, enhance sensitivity enable unequivocal identification quantification. Sample purification discussed their most recent applications food provided. This pointed out that critical step.