TY - JOUR
T1 - Simultaneous determination of cadmium, copper, lead and zinc in lead and zinc concentrates by a.c. polarographic methods. Comparison with atomic absorption spectrometry
AU - Beyer, M. E.
AU - Bond, A. M.
PY - 1975/4
Y1 - 1975/4
N2 - The simultaneous determination of Cd, Cu, Pb and Zn in lead and zinc concentrates by fundamental, second-harmonic and linear-sweep a.c. and pulse polarographic methods is described. Calibration curves are linear over wide concentration ranges, so that both major and minor trace constituents can be determined in the same experiment; thus the polarographic method is highly competitive with atomic absorption spectrometry (a.a.s.). Conventional a.c. polarography and a.a.s. were compared in the first instance with conservative instrumentation. More sophisticated polarographic methods were then utilized; with the phase-selective linear sweep a.c. (fundamental- and second-harmonic) methods the four elements were determined simultaneously from voltammograms obtained in less than 20 s down to the 10-6-10-7 M concentration range.
AB - The simultaneous determination of Cd, Cu, Pb and Zn in lead and zinc concentrates by fundamental, second-harmonic and linear-sweep a.c. and pulse polarographic methods is described. Calibration curves are linear over wide concentration ranges, so that both major and minor trace constituents can be determined in the same experiment; thus the polarographic method is highly competitive with atomic absorption spectrometry (a.a.s.). Conventional a.c. polarography and a.a.s. were compared in the first instance with conservative instrumentation. More sophisticated polarographic methods were then utilized; with the phase-selective linear sweep a.c. (fundamental- and second-harmonic) methods the four elements were determined simultaneously from voltammograms obtained in less than 20 s down to the 10-6-10-7 M concentration range.
UR - http://www.scopus.com/inward/record.url?scp=0016734603&partnerID=8YFLogxK
U2 - 10.1016/S0003-2670(01)85366-6
DO - 10.1016/S0003-2670(01)85366-6
M3 - Article
AN - SCOPUS:0016734603
SN - 0003-2670
VL - 75
SP - 409
EP - 420
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
IS - 2
ER -