Metrohm has presented new applications and instrumentation for the wet-chemical determination of trace concentrations of six RoHS-restricted substances in a variety of materials.
These materials include metals, electrotechnical components, plastics and wires.
After sample preparation according to IEC 62321, the metals lead, cadmium and mercury are straightforwardly determined by anodic stripping voltammetry (ASV).
The flame retardants PBB and PBDE are quantified by direct-injection ion chromatography (IC) using spectrophotometric detection.
Chromium (VI) can be sensitively determined either by adsorptive stripping voltammetry (AdSV) or IC.
Trace halides in non-aqueous sample matrices are best determined using combustion IC.
Detailed information on the applications and respective instrumentation can be found on a poster recently published by Metrohm.
