1 Tổng quan phương pháp
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. Phạm vi áp dụng
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
| Không. | Tên | Số lượng | Yêu cầu kỹ thuật | Phụ kiện |
|---|---|---|---|---|
| 1 | Nhãn quang phổ hấp thụ nguyên tử ngọn lửa | 1 bộ | — | Nickel hollow‑cathode lamp |
| 2 | Máy nén khí | 1 bộ | Rated discharge pressure: 0.3 MPa | — |
| 3 | Acetylen | 1 xi lanh | Purity ≥99.99% | — |
