Journal of Analytical Methods in Chemistry / 2012 / Article / Tab 4

Research Article

Sequential Determination of Total Arsenic and Cadmium in Concentrated Cadmium Sulphate Solutions by Flow-Through Stripping Chronopotentiometry after Online Cation Exchanger Separation

Table 4

Analyses of real samples.

SampleChronopotentiometryAAS
As, μg/LCd, g/LAs, g/LaCd, g/Lb

A<112.3 ± 1.1<8011.3 ± 0.7
B57.5 ± 4.142.1 ± 1.9<8045.2 ± 2.5
C67.2 ± 5.235.1 ± 2.1<8036.2 ± 1.9
D154 ± 10.248.1 ± 3.7130 ± 1547.2 ± 3.0
E165 ± 9.431.5 ± 2.0180 ± 1535.3 ± 1.8
F193 ± 15.246.2 ± 2.9210 ± 1644.3 ± 2.2
G440 ± 21.136.2 ± 2.1670 ± 3535.9 ± 1.7
H740 ± 41.136.2 ± 2.11100 ± 6535.9 ± 1.7

aHydride generation AAS. bFlame AAS. The samples were acquired from a cadmium production plant, Portovesme s. r. l., Portoscuso, Italy.

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