超级微波消解——电感耦合等离子体质谱法测定地铁空调冷却水中27种元素  

Determination of 27 Elements in Subway Conditioning Cooling Water by Super Microwave Digestion Inductively Coupled Plasma Mass Spectrometry

作　　者：莫健文 韦衍凯 王磊 孙旦旦 Mo Jianwen;Wei Yankai;Wang Lei;Sun Dandan(Guangdong Institute of Special Equipment Inspection and Research Dongguan Branch,Dongguan 523000,China)

机构地区：[1]广东省特种设备检测研究院东莞检测院,广东东莞523000

出　　处：《广东化工》2024年第17期176-178,138,共4页Guangdong Chemical Industry

基　　金：东莞市社会发展科技项目(20211800904082);东莞市社会发展科技项目(20231800902532)。

摘　　要：本文研究目的是建立超级微波消解-电感耦合等离子体质谱法测定地铁空调冷却水中27种元素的检测方法。方法:使用超级微波消解仪消解处理样品,采用内标法进行方法优化和评估。结果:各种待测元素在测量范围内有良好的线性关系,相关系数均大于0.998,平均回收率为81.7%~119%,相对标准偏差为0.02%~2.39%。结论:本方法简单、高效、准确,适用于地铁空调冷却水中27种元素的检测,并为研究循环冷却水中金属元素对地铁空调系统腐蚀、结垢、环保等问题提供更科学的技术支持。The purpose of this study is to establish a detection method for 27 elements in subway air-conditioning cooling water using super microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS).Methods:The samples were digested and processed using a super microwave digestion instrument,and the internal standard method was adopted for method optimization and evaluation.Results:All the elements to be tested showed good linear relationships within the measurement range,with correlation coefficients all greater than 0.998.The average recovery rate ranged from 81.7%to 119%,and the relative standard deviation ranged from 0.02%to 2.39%.Conclusion:This method is simple,efficient,and accurate,suitable for the detection of 27 elements in subway air-conditioning cooling water,and provides more scientific technical support for studying the effects of metal elements in circulating cooling water on corrosion,scaling,and environmental protection of subway air-conditioning systems.

关 键 词：超级微波消解 电感耦合等离子体质谱 地铁空调冷却水 元素 腐蚀 结垢 

分 类 号：TQ13[化学工程—无机化工] TH843[机械工程—仪器科学与技术]