SELECTIVE FLOW-INJECTION DETERMINATION OF AMINO-COMPOUNDS IN MIXTURES

Working conditions were determined for the determination of aniline, 4 -bromoanilne, and 2,2,4-trimethyl-1,2-dihydroquinoline as their 5,7-di nitrobenzofurazan and 4,6-dinitrofuroxan derivatives by flow-injection analysis. The selectivity of determinations of amino compounds in mix tures is provided by varying the flow composition and selecting the re agents. Procedures were developed for the determination of components of model reaction mixtures for the synthesis of acetonanile (a rubber antioxidant) and bromantan (a medicament) by flow-injection analysis w ith the detection limit 5 x 10(-7) M.