重量法测定粉尘中游离SiO_2探讨  

Discussion on Measurement of Dissociated SiO_2 in Dust by Weight Method

作　　者：赵朝立[1] 郭学伟[1] 王东锋[1] 

机构地区：[1]安阳钢铁集团有限责任公司,安阳河南455004

出　　处：《环境监测管理与技术》2008年第2期54-55,共2页The Administration and Technique of Environmental Monitoring

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.

关 键 词：重量法 粉尘 游离二氧化硅 

分 类 号：O655.1[理学—分析化学]