✦ LIBER ✦

Determination of molybdenum in soils and plants using the polarographic adsorptive complex catalytic wave of Mo(VI)-cupferron

✍ Scribed by Kui Jiao; Wenrui Jin; Helmut Metzner

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 734 KB
Volume: 260
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)80123-o

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✦ Synopsis

The very sensitive adsorptive complex catalytic wave of Mo(VI)-cupferron with acetic acid-potassium acetate as supporting electrolyte in differential-pulse, normal-pulse, direct current and linear-sweep polarographic techniques has been successfully applied to the determination of available molybdenum in soils and molybdenum in plants. Soil and ashed-plant samples are extracted with hot water and the extract solution can be analysed directly without preseparation. The procedure is very simple and the method is very sensitive for the determination of MofVJ). The mechanism of the polarographic wave was studied; it behaves as an adsorptive complex wave and also as an EC (electrode reaction-chemical reaction) parallel catalytic wave.

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