Catalytic determination of vanadium using the perphenazine–bromate redox reaction and a citric acid activator

The Analyst ◽  
1995 ◽  
Vol 120 (8) ◽  
pp. 2281-2285 ◽  
Author(s):  
Ashraf A. Mohamed ◽  
Masaaki Iwatsuki ◽  
Tsutomu Fukasawa ◽  
Mohamed F. El-Shahat
The Analyst ◽  
1995 ◽  
Vol 120 (4) ◽  
pp. 1201-1204 ◽  
Author(s):  
Ashraf A. Mohamed ◽  
Masaaki Iwatsuki ◽  
Mohamed F. El-Shahat ◽  
Tsutomu Fukasawa

1986 ◽  
Vol 90 (1-2) ◽  
pp. 71-80 ◽  
Author(s):  
Tsutomu Fukasawa ◽  
Masaaki Iwatsuki ◽  
Susumu Kawakubo ◽  
Manabu Mochizuki

1951 ◽  
Vol 193 (1) ◽  
pp. 277-283 ◽  
Author(s):  
CharlesE. Frohman ◽  
JamesM. Orten ◽  
ArthurH. Smith

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