Abstract
The analytical determination of organic structures is a fundamental need in environmental, food and medicinal chemistry, and the chemistry of pesticide compounds is closely involved in this determination because of the environmental and biological transformations that can occur to these molecules. Degradation products often possess higher toxicity than parent substances but unknown structures, and aqueous milieu produce hard-to-solve instrumental problems. The need to analyze low concentrations in polar solutions means that methods in which liquid chromatography is hyphenated to mass spectrometry have a large playing field, which combines trace determination and structural elucidation. An important area of study comprises degradation-simulating models, such as titanium dioxide mediated photocatalytic attacks on different organic structures. HPLC-mass spectrometric studies on pesticides, their metabolites and their degradation products are reviewed.
Keywords: germicides, organophosphate, pesticide classes, liquid chromatography, chemical descriptors, chromatographic migration, organic modifiers, ion pair (ip), lc detector, thermospray (tsp)
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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