This application note describes a robust analytical method for the determination of heavy metals and sub- substances regulated by the EU Restriction of Hazardous Substances/End of Life Vehicles (RoHS/ELV) directives. Based on the experience of Nihon Environmental Services Co., Ltd in Japan using an Agilent Technologies 7500c ORS (Octopole Reaction System) collision/reaction cell ICP-MS, this note summarizes: • An overview and validation of ICP-MS methodology for RoHS applications • Benefits of ICP-MS methodology to the analysis of trace elements in high matrix samples and limitations of EDXRF (Energy Dispersive X-Ray Fluorescence) for the measurement of lead in flame resistant plastics • Advantages of ICP-MS for RoHS applications.
This document outlines the use of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to measure heavy metals such as cadmium, lead, mercury, and chromium in compliance with EU RoHS and ELV directives. It details a validated methodology using an Agilent Technologies 7500c ICP-MS equipped with an Octopole Reaction System (ORS) collision/reaction cell.
Spectral interferences are overcome by operating the ORS collision/reaction cell in helium mode with a flow rate of 4.5 mL/min.
The helium mode should be operated at a flow rate of 4.5 mL/min.
The certified value for cadmium in this standard is 140.8 mg/kg.