ICP-AES法同时测定烟火药剂中的铅、铬和铋

Simultaneous determination of lead,chromium and bismuth in pyrotechnic composition by ICP-AES

采用王水溶样,ICP-AES法同时测定烟火药剂中的铅、铬、铋元素的含量。对烟火药剂样品消解方法、方法的检出限、分析波长、精密度、回收率等进行了实验。结果显示其相对标准偏差均在5%以下,回收率在86.2%-102.2%之间。运用该方法对不同烟火药剂进行检测,测定结果与AAS单元素分析结果吻合。

Lead, chromium and bismuth in pyrotechnic composition samples were determined by ICP-AES with aqua regia digestion. The dissolution method, limit of detection, analytical wavelength, precision and recovery of pyrotechnic composition samples were investigated. The results of precision examination indicated that the relative standard deviation was less than 5% and the recoveries were from 86.2% to 102. 2%. Different pyrotechnic composition samples were inspected by this method. The determination results were compared the single element analysis results by AAS and agreed well with those obtained by AAS.