β Scribed by L Vos; Z Komy; G Reggers; E Roekens; R Van Grieken
No coin nor oath required. For personal study only.
Differential-pulse stripping voltammetry is applied to measure zinc, cadmium, lead and copper by anodic stripping and selenium(IV) by cathodic stripping in rain water at pH 2; subsequently, at pH 9.1, manganese is measured by anodic stripping on the same portion, and cobalt and nickel are measured in the adsorptive mode after formation of their dimethylglyoximates. The instrumental parameters are optimized. The linear ranges, mutual interferences and detection limits are studied. Excellent accuracy is demonstrated; the standard deviation is around 15% at 2.5-50 fig 1-l levels. The method is shown to be applicable for rain water.
π SIMILAR VOLUMES
A preconcentration procedure with two-step extraction was proposed to be used in conjunction with differential pulse anodic stripping voltammetty (DPASV) for the determination of trace metals in sea water. The two-step extraction involved extraction of trace metals from sea water with dithiocarbamat
Differential-pulse anodic stripping voltammetry is applied to determine cadmium, lead and copper m rain water acidified with nitric acid to pH 1.5, and zinc after partial neutralization to pH 4.5. Subsequently, cobalt and nickel are measured in the adsorptive mode after formation of their dimethylgl