GB/T 11067.5-2006 《Methods for chemical analysis of silver - Determination of lead and bismuth contents - Flame atomic absorption spectrometric method》 Related products

This standard applies to the determination of the content of lead and bismuth in silver, and the determination range is 0.0005% to 0.050% of lead and 0.0005% to 0.0080% of bismuth, respectively. The method separates lead and bismuth by settling with hydroxide in ammonia solution, and then uses flame atomic absorption spectroscopy (AAS) method in nitric acid medium for measurement. The standard details the preparation, analysis steps and instrument conditions of the reagent to ensure the accuracy and Repeatability of the analysis results, providing reliable technical support for the detection of trace lead and bismuth in silver.