Polarographic determination of zirconium at trace level.
An indirect polarographic method has been developed for the determination of zirconium by formation of molybdozirconophosphoric acid, its extraction with MIBK or a mixture of diethyl ether and 1-butanol, stripping with alkali and measurement of the Mo(VI) by its catalytic effect on the polarographic reduction of hydrogen peroxide. Depending on the extradant, a detection limit of 2.5 or 8.9 mu/gl, can be achieved.
Castrillejo
Y
Y
Departamento de Química Analítica, Facultad de Ciencias, Universidad de Valladolid, Valladolid, Spain.
Pardo
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R
Barrado
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E
Batanero
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PS