A. Afkhami et A. Afshar-e-asl, Kinetic-spectophotometric determination of hydrazine by the inhibition of the bromate-hydrochloric acid reaction, ANALYT CHIM, 419(1), 2000, pp. 101-106
A simple, sensitive, accurate and selective method for rapid determination
of hydrazine is described which is based on its inhibition effect on the re
action between bromate and hydrochloric acid. The decolourisation of methyl
orange by the reaction products was used to monitor the reaction spectroph
otometrically at 525 nm. The method allows the determination of hydrazine i
n the range 3.0 x 10(-7)-3.2x10(-5) M. The relative standard deviation for
10 determinations of 6.25 x 10(-6) M hydrazine is 1.2% and the detection li
mit of the method is 8.5 x 10(-8) M. The method is applied to the determina
tion of hydrazine present in water. (C) 2000 Elsevier Science B.V. All righ
ts reserved.