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|Title:||Determination of molybdenum using polarographic catalytic current||Authors:||Hong-Bin, H.
Differential pulse polarography
|Issue Date:||20-Jun-1995||Citation:||Hong-Bin, H.,Kok-Siong, S.,Hua, C.,Zhi-Qiang, G.,An-Kong, H. (1995-06-20). Determination of molybdenum using polarographic catalytic current. Analytica Chimica Acta 309 (1-3) : 73-78. ScholarBank@NUS Repository.||Abstract:||Trace levels of molybdenum can be determined by differential pulse polarography, based on the catalytic effect of the molybdenum-PAR [4-(2-pyridylazo)-resorcinol] complex on the reduction of sodium bromate. The powerful oxidant, sodium bromate, increases the peak current for the reduction of the molybdenum-PAR complex by about 5 times. Under optimal conditions, molybdenum at the μg l-1 level can be easily determined. The detection limit is 0.22 μg l-1; the response is linear over the range of 1.0 × 10-8 to 1.0 × 10-7 M; and the relative standard deviation at 1.0 × 10-7 M molybdenum is 2.77%. Most cations do not interfere in the determination of molybdenum. © 1995.||Source Title:||Analytica Chimica Acta||URI:||http://scholarbank.nus.edu.sg/handle/10635/93552||ISSN:||00032670|
|Appears in Collections:||Staff Publications|
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