GB/T 15076.3-2019 《Methods for chemical analysis of tantalum and niobium—Part 3：Determination of copper content—Flame atomic absorption spectrometry》 Related products

This standard specifies a method for the determination of copper content in tantalum, niobium and their hydroxides by flame atomic absorption spectroscopy (AAS), applicable to the determination range of 0.0002% to 0.060% copper content. After dissolving the sample with hydrofluoric acid and nitric acid, the method uses AtomicAbsorption Spectroscopy to determine the copper content at a wavelength of 324.7 nm. The standard provides a standardized analytical method for the accurate detection of copper content, ensuring the accuracy and repeatability of the test results.