RoHS certification of commonly used detection methods

1: the British blue, anions by Ion Chromatography
By oxygen bomb combustion, the British blue technology after pretreatment, directly into the ion chromatographic analysis
2, cation and its valence:
The British blue cation chromatography, ion selective electrode method, atomic absorption method which can detect
Determining cation valence can use volt-ampere polarographic analysis
Rohs pronunciation.
The / Rous /
Detection method can refer to IEC62321: 2008 electrical and electronic products in six regulated substances concentration determination procedure
A first XRF non-destructive screening, fast efficient, non destructive, low cost. But many interference factors, error.
B. Microwave acid digestion, after using AAS or ICP-AES determination of Pb, Cd, Hg concentration.
C Soxhlet extraction with GC-MS determination of polybrominated biphenyl polybrominated diphenyl ethers, the concentration of such.
D. The test method or boiling water extraction method for the determination of colorless surface layer of Cr6 + concentration, or by ultraviolet visible spectrophotometer by EPA3060A test..