P. Englmaier
1983
Citations
0
Influential Citations
9
Citations
Journal
Journal of Chromatography A
Abstract
Abstract Nitration of aromatic compounds in a sulphuric acid medium as a method for nitrate determination has been studied by gas chromatography. 2,4-Dimethylphenol was used as reactant because it is highly reactive and can only form a single nitro- derivative. Its concentration and that of sulphuric acid during nitration were optimized. The yield of the toluene extraction method employed was determined and found to be satisfactory. No degradation of the reaction product in the samples was found within 72 h. The detection limit was 0.1 ppm. Concentrations from 1 to 100 ppm and higher can be quantitatively detected without dilution.