GB/T 5195.7-2016 《Fluorspar—Determination of zinc content—Flame atomic absorption spectrophotometric method》 Related products

This standard specifies a method for the determination of zinc content in fluorite by atomic absorption spectroscopy (AAS), which is suitable for the determination of fluorite samples with a zinc content range of 0.020% to 1.0%. Methods The zinc content is calculated by calibrated Linear dispersion method by dissolving the sample with hydrofluoric acid, perchloric acid and sulfuric acid, and measuring the zinc content in the sample in an acidic medium. This standard specifies the required reagents, instruments and operation procedures in detail, providing a technical basis for the accurate determination of zinc content in fluorite.