A flow-injection spectrophotometric method for the determination of hydrazine is described. The method is based on the inhibitory effect of hydrazine on the reaction of thionine with nitrite in acidic media. The decolorization of thionine by the reaction with nitrite was used to monitor the reaction
Kinetic spectrophotometric determination of hydrazine
โ Scribed by A. Safavi; A.A. Ensafi
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 365 KB
- Volume
- 300
- Category
- Article
- ISSN
- 0003-2670
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โฆ Synopsis
A sensitive kinetic method for determining low levels of hydrazine has been described. The method is based on the measurement of the rate of the reaction between hydrazine and MO(W) in the presence of hydrochloric acid. The redox reaction was monitored spectrophotometrically at 710 nm. The variable-time and fixed-time methods were used. The calibration graph was linear for hydrazine concentrations of 1.0 X 10d4-1.4 X lo-' M, using the fixed-time method of analysis. The method is simple, rapid, precise, sensitive and widely applicable.
๐ SIMILAR VOLUMES
A method has been developed to measure hydrazine, hydrazides, and their mixtures using a modification of the trinitrobenzenesulfonic acid method [T. Okuyama and K. Satake (1960) J. Biochem. (Tokyo) 47, 654-660]. After incubation of the sample containing hydrazine and hydrazide with trinitrobenzenesu
A new catalytic kinetic method based on the decolorization reaction of rhodamine B has been established for the determination of copper in serum. In the presence of copper, rhodamine B can be oxidized by hydrogen peroxide in the NH 3 -NH 4 F medium. After each serum sample was digested with strong a