Simple apparatus for trace analysis of toxic heavy metals. Determination of cadmium and lead by manual D.C. polarography.

@article{Hsieh1976SimpleAF,
  title={Simple apparatus for trace analysis of toxic heavy metals. Determination of cadmium and lead by manual D.C. polarography.},
  author={S A Hsieh and George Wong and Tony S. Ma},
  journal={Mikrochimica acta},
  year={1976},
  volume={3-4 Pt 2},
  pages={253-63}
}
A simple manual d.c. polarographic apparatus is described which can be assembled from ordinary laboratory equipment. The sensitivity of this apparatus can reach +/-0.5 mV in voltage and +/-0.005 muA in current. Using this set up, trace amounts of cadium and lead in foods and beverages can be determined at the ppm region.