不同前处理方法对垢样中钙、镁、铜、铁、锌含量测定的比较研究  

Comparation of Different Pretreatment Methods for Measurement of Calcium,Magnesium,Copper,Iron and Zinc in Scales

作　　者：王春波 谭蓬 Wang Chunbo;Tan Peng(Ningbo Special Equipment Inspection and Research Institute,Ningbo 315040)

机构地区：[1]宁波市特种设备检验研究院,宁波315040

出　　处：《中国特种设备安全》2022年第1期9-11,76,共4页China Special Equipment Safety

摘　　要：分别采用电加热法和微波法对锅炉水系统和循环水系统的水垢进行消解,然后用原子吸收火焰法测定其中钙、镁、铜、铁、锌的含量,检测结果表明垢样采用电加热消解和微波消解的相对标准偏差均低于2%,加标回收率为89%~108%,两种消解方法结果差异不显著。电加热消解法和微波消解法都可作为垢样的前处理方法,可根据实际需要进行选择。The scales of boiler water supply system and circulating water system were digested by electric heating method and microwave method.The samples were tested by atomic absorption flame method to determine the amount of calcium,magnesium,copper,iron and zinc.The RSD of the detection result was lower than 2%.The spike recovery was around 89%to 108%.There was no significant difference between the two digestion methods.Both electric heating digestion method and microwave digestion method can be used as pretreatment methods of scales,which can be selected according to the actual needs.

关 键 词：电加热消解 微波消解 水垢 原子吸收火焰法 

分 类 号：X933.2[环境科学与工程—安全科学]