摘要
采用等离子体发射光谱法测定感光材料硝酸银中铋、铁、铜、铅等杂质元素的含量,样品经氯化铵溶液沉淀分离基体银后,利用等离子体发射光谱法测定滤液中多种杂质元素含量,并通过优化高频发生器等仪器工作参数及沉淀剂用量和沉淀时间等确定了最佳实验条件,具有简单快捷、灵敏度高、重现性好、线性范围广、结果准确等优势.铋、铁、铜、铅元素的检出限分别为0.0003、0.0005、0.0003、0.001 0 ug/mL,加标回收率在96.20％ ∽ 103.50％之间,适用于感光材料硝酸银中杂质元素的测定.
Method for determining the amount of Bi, Fe, Cu, Pb in silver nitrate with ICP - AES had be developed. In order to separate silver from the sample, ammonium chloride solution was used to get the silver chloride precipitation. By improved the parameter of equipment and the use of precipitation agent, the method had been greatly ameliorate at stability and veracity to de- termination heavy metals impurities in the filtrate. Under the optimal experiment conditions, the limit of detection for Bi, Fe, Cu, Pb was O. 000 3, O. 000 5, 0. 000 3,0. 001 0 ug/mL and the recovery is 97.7% to 102. 4% respectively, which was suitable for impurity heavy metals elements in Silver nitrate
出处
《环境科学与管理》
CAS
2014年第12期142-144,共3页
Environmental Science and Management
