Electron Donor-Acceptor Complexing Reagents in the Analysis of Pesticides: III. Quantitativein situAnalysis by Reflectance Spectroscopy on Thin-layer Chromatograms

摘要

The quantitative insitudetermination of pi-complexed pesticides by reflectance spectroscopy is discussed and quantitative results and stability studies obtained on cellulose and silica-gel thin-layer plates are presented. Detection limits are in the microgram region, with the linear working range for the Mobam-CNTNF complex chosen as an example being 1#x2013;10 meg on cellulose and 3#x2013;10 meg on silica gel. The complexed pesticide may be recovered following quantitative determination for mass spectral confirmation. The method shows particular utility in studying the degradation of pesticides.