1 Method Overview After the sample is digested with aqua regia, the measurement is performed using an air‑acetylene flame at the instrument wavelength of 248.3 nm.
2 Scope of Application This method is applicable to the determination of iron in graphite powder.
3 Reference Basis GB/T 24533‑2009
4 Instrumente und Reagenzien
4.1 Instrumente und Ausrüstung
4.1.1 Testing Instruments
| - Nein. - Nein. | Name | Menge | Technische Anforderung | Zubehör |
|---|---|---|---|---|
| 1 | Flammenabsorptionsspektrophotometer | 1 Satz | — | Iron Hollow‑Cathode Lamp |
| 2 | Acetylen | 1 Zylinder | Purity ≥99.99% | — |
| 3 | Luftkompressor | 1 Satz | Rated exhaust pressure: 0.3 MPa | — |
