LATEST ANALYTICAL METHODS FOR THE RESIDUA L PESTICIDES IN FOODS

The analytical method for residual pesticides in foods is required to determine the target compounds at sub-ppm levels in various kinds of f ood matrix. Moreover, the number of possible residues including metabo lites is over several hundreds, thus multiresidue analysis has become accepted by many analysts. Simplified extraction, minimum cleanup, and highly selective detection are quite important steps to accomplish su ch multi-analysis effectively. Extraction and cleanup procedures might be taken by the laboratory automation systems, instead of the manual methods, because the introduction of these systems can contribute to t he improvement of quality control in analysis with reducing skilled ma npower. This review describes matrix solid phase dispersion and superc ritical fluid extraction in the extract section, and miniature size co lumn and gel permeation chromatographies in the cleanup section. AED-G C and several kinds of GC-MS are also described as highly selected and sensitive detectors.