摘要
讨论了重量法测定粉尘中游离Si^O2含量分析过程中易出错的焦磷酸制备、残渣转移等试验步骤,提出准确测定的关键是控制温度,并根据对比试验和工作经验改进了分析过程中样品转移的方法。
The error-prone experiment steps were discussed during the analysis of the dissociated SiO2 deter- mination in dust by the weight method such as pyrophosphoric acid preparation, residual substance transfer and so on. The key to accurate measurement was proposed as controlling of experimental temperature. The transfer way of residual substance during the analysis was improved by experiments and experience.
出处
《环境监测管理与技术》
北大核心
2008年第2期54-55,共2页
The Administration and Technique of Environmental Monitoring
