Heavy metal analysis
Manufacturers are seeing an ever increasing list of hazardous materials, including toxic heavy metals like lead and mercury, that are being banned in plastics and polymers. Cars, electrical/electronic equipment, polymer additives and other chemicals are subject to specific directives like the European Waste of Electrical and Electronic Equipment (WEEE), Recast Regulation of Hazardous Substances (RoHS 2), End-of-Life Vehicles (ELV) and the Regulation, Evaluation, Authorization and restriction of Chemicals (REACH).
Typical applications for plastics and polymers include:
- Screening for bromine, cadmium, chromium, lead and mercury at low ppm (mg/kg) levels for RoHS 2, WEEE, ELV compliance support
- Accurate elemental analysis of bromine, cadmium, chromium, lead and mercury according ASTM F2617
- Screening oddly shaped samples like toys and electronics, for heavy metals
XRF is the preferred analysis method for screening and quantification.
Being relatively easy and requiring almost no sample preparation XRF has emerged as an ideal tool for heavy metal analysis.
The Epsilon 4, an energy dispersive XRF spectrometer, has the ability to quantify from 100% down to ppm concentration ranges is one of its many benefits.