GB/T 6150.15-2023 《Methods for chemical analysis of tungsten concentrates—Part 15：Determination of bismuth content—Hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry》 Related products

This standard specifies two methods for the determination of bismuth content in tungsten concentrates: hydride generation Atomic fluorescence spectrometry, AFS and flame atomic absorption spectroscopy (AAS). The hydride generation method is suitable for the measurement range of 0.0010% to 0.30%, while the flame atomic absorption method is suitable for the measurement range of 0.050% to 0.50%. The standard emphasizes that when the measurement ranges overlap, the use of flame atomic absorption method as an arbitration method ensures the accuracy of bismuth content determination.