GB/T 1819.7-2004 Determination of bismuth in tin concentrate by flame atomic absorption spectroscopy (AAS). First, the tin concentrate sample is pretreated to convert the bismuth element into an ionic state in the solution. The bismuth atomization is made by using a Flame atomization device, and the absorption degree of bismuth atoms to specific wavelengths of light is measured by means of a light spectrum meter, that is, Absorbance. By establishing a standard Linear dispersion, the bismuth content in tin concentrate is accurately calculated according to Absorbance. This standard provides a key technology for the mass detection of tin concentrates, which is helpful to accurately evaluate the quality of tin concentrates and is widely used in the field of tin mining and processing.
| Status | Abolish | ||
|---|---|---|---|
| CCS | D41 | ICS | 73.060 |
| Release Date | 2004-02-05 00:00:00 | Implementation Date | 2004-07-01 00:00:00 |
