电厂锅炉水汽中痕量阴离子的离子色谱法测定  

Determination of Trace Anions in the Steam of Power Plants by Ion Chromatography

作　　者：曹菊林 顾先涛 宋纪双 计巧珍 张更 吴妍 CAO Julin;GU Xiantao;SONG Jishuang;JI Qiaozhen;ZHANG Geng;WU Yan(Anhui Xinli Electric Power Technology Consulting Co.,Ltd.,Hefei 230601,China;State Grid Anhui Electric Power Co.,Ltd.Electric Power Research Institute,Hefei 230601,China)

机构地区：[1]安徽新力电业科技咨询有限责任公司,安徽合肥230601 [2]国网安徽省电力有限公司电力科学研究院,安徽合肥230601

出　　处：《安徽电气工程职业技术学院学报》2023年第1期110-113,共4页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：提出了一种利用离子色谱法进行梯度淋洗同时测定电厂锅炉水汽中痕量F^(-)、HCOO^(-)、CH_(3)COO^(-)、Cl^(-)、NO_(2)^(-)、SO_(4)^(2-)、NO_(3)^(-)、PO_(4)^(3-)的方法。使用IonPac AS15阴离子分离柱,KOH溶液作为淋洗液,结果得出在质量浓度为0~30μg/L范围内,8种阴离子的标准曲线线性关系良好,检出限在0.10~0.52μg/L之间,相对标准偏差在0.03%~2.01%之间,加标回收率在93%~108%之间。采用该方法可以准确有效监测电厂锅炉水汽的品质。The method of using ion chromatography for gradient elution and meanwhile for determining trace anions(F^(-)、HCOO^(-)、CH_(3)COO^(-)、Cl^(-)、NO_(2)^(-)、SO_(4)^(2-)、NO_(3)^(-)、PO_(4)^(3-))in the steam of power plants is proposed.The chromatographic separation was achieved on IonPac AS15 anionic exchange column and KOH solutions were used as eluent.The results showed that there was a linear relationship for the eight anions in the range of 0~30μg/L,the detection limits were between 0.10μg/L and 0.52μg/L,the relative standard deviations(RSD)were 0.03%~2.01% and the recoveries ranged from 93% to 108%,which indicates that the method could be used for determining trace anions in the steam of power plants.

关 键 词：离子色谱法 梯度淋洗 锅炉水汽 阴离子 

分 类 号：TM621.8[电气工程—电力系统及自动化]