1 Method Summary
After sample digestion with aqua regia, the copper content is determined by air‑acetylene flame atomic absorption spectrometry at a wavelength of 324.7 nm.
2 Scope of Application
Applicable to the determination of copper in graphite powder.
3 Reference Standard
GB/T 24533‑2009
4 Test Instruments
· Flame Atomic Absorption Spectrophotometer 1 set Copper hollow cathode lamp included
· Air Compressor 1 set Rated discharge pressure: 0.3 MPa
