1 Aperçu de la méthode
The sample is digested with hydrochloric acid, hydrogen peroxide and nitric acid solution. In dilute hydrochloric acid medium, the absorbance of nickel is measured by air‑acetylene flame at the wavelength of 232.0 nm using an atomic absorption spectrometer.
2. Champ d'application
This method is applicable for the determination of nickel in zinc alloys.
3 Apparatus and Reagents
3.1 Apparatus and Equipment
3.1.1 Testing Instruments
| - Non, non. | Nom | Quantité | Exigences techniques | Accessoires |
|---|---|---|---|---|
| 1 | Spectrophotomètre d'absorption atomique de flamme | 1 ensemble | — | Nickel hollow‑cathode lamp |
| 2 | Compresseur d'air | 1 ensemble | Rated discharge pressure: 0.3 MPa | — |
| 3 | Acetylène | 1 cylindre | Purity ≥99.99% | — |
