ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Oscillographic polarography in quantitative analysis. XVI. Oscillopolarographic microanalysis

R. Kalvoda and I. M. Pavlová

CSAV, Prague.

Abstract: cf. CA 55, 16263c; 58, 2846c. To det. traces of Cd⁺⁺ in 0.1M Be(OAc)₂ +0.1M HOAc, electrolyze the soln. with a hanging Hg drop cathode (Micka, CA 58, 7610d) for 3-20 min., and record the oscillopolarographic curve dE/dt = f(E) with the same electrode. Dil. the soln. with the same electrolyte free of Cd⁺⁺ (1:1), repeat the same procedure, add a standard Cd⁺⁺ soln. to make the concn. of added Cd⁺⁺ 1, 2, and 3 × 10-7M, and after every addn. repeat electrolysis and recording. From the anodic incisions on the curves dE/dt = f(E), the concn. of Cd⁺+ in the original soln. can be estd. Thus: Pb, Cd, and Cu were detd., in the concn. range of 4 × 10^-8 to 8 × 10^-7M in acidic solns. of AlNH₄(SO₄)₂, MgSO₄, Mg(OAc)₂, Be(OAc)₂, K₃Cr(C₂O₄)₃, K₃AsO₄, and in HCl.

Full paper in Portable Document Format: 164-5a266.pdf (in German)

Chemical Papers 16 (4-5) 266–272 (1962)