摘要
Vitamin B1 reacts with diazo-aminobenzene sulfonic acid to form a red complex in a basic mcdium and there is absorption of vitamin B2 at 440 nm. A flow injection lspectrophotometric determination of the two medicaments is described based on these characteristics.The method was simple and a high selecuivity and sampling rate of 60 lr-1.The dynamic linear ranges were 0-100 μg ml-1 of vitamin B1 and 0-80 μ g ml-1 of vitamin B2,respectively.the relative standard deviation was 0.2881%(n=10)for vitamin B1.
Vitamin B1 reacts with diazo-aminobenzene sulfonic acid to form a red complex in a basic mcdium and there is absorption of vitamin B2 at 440 nm. A flow injection lspectrophotometric determination of the two medicaments is described based on these characteristics.The method was simple and a high selecuivity and sampling rate of 60 lr-1.The dynamic linear ranges were 0-100 μg ml-1 of vitamin B1 and 0-80 μ g ml-1 of vitamin B2,respectively.the relative standard deviation was 0.2881%(n=10)for vitamin B1.
