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1 The University of Melbourne,
Parkville, 3052, Australia
2 Department of Applied Chemistry, Royal Melbourne
Institute of Technology, GPO Box 2476V, Melbourne, 3001, Australia.
The determination of lead, cadmium, and zinc in wine by stripping potentiometry is described. The wines used
in this study include red and white table wines, sparkling wines, and fortified wines. The stripping potentiometric
methods for lead and zinc are rapid with analysis times per test sample of one minute or less. For cadmium,
the low concentration in wine requires considerably longer analysis times of up to five minutes per sample. The
precision of the stripping potentiometric methods is high, with relative standard deviations being 
6%. The
results compare favorably with those obtained by graphite furnace atomic absorption spectrophotometry (lead
and cadmium) and flame atomic absorption spectrophotometry (zinc). The advantages of using stripping
potentiometry for the routine determination of lead, cadmium and zinc in wine are identified.
Key words: stripping potentiometry, wine analysis, lead, cadmium, zinc, trace analysis
Submitted on August 17, 1993
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