摘要
稀硝酸溶样后用 0 1mol/L硝酸定量稀释到一定浓度 ,以EDTA作掩蔽剂 ,控制溶液 pH4 7,以二苯硫腙的四氯化碳溶液萃取分光光度法间接测定粗铅中银的含量 ,可测定约 0 3 %含银量 ,操作快速 。
The sample was dissolved by dilute HNO 3 and its solution was quantitatively diluted to a certain concentration. In the solution at pH 4.7, EDTA as a masking agent, silver was indirectly determined by extraction spectrophotometry with dithizone CCl 4. The method was used to determine silver (about 0.3%). The operation was quick and easy to spread.
出处
《冶金分析》
CAS
CSCD
北大核心
2001年第3期58-59,共2页
Metallurgical Analysis
