一阶导数法离子色谱法在水质检测重叠峰定量中的应用  

Application of First Derivative ion Chromatography in Quantification of Overlapping Peaks in Water Quality Detection

作　　者：廖爽 乔茜茜 雷静 吕警[2] LIAO Shuang;QIAO Qianqian;LEI Jing;LYU Jing(Xinjiang Changyuan Water Research Institute Co.Ltd.;Agricultural Product Quality and Safety Testing Center of Urumqi,Urumqi,XinJiang Uygur Autonomous Region,830000 China)

机构地区：[1]新疆昌源水务科学研究院有限公司 [2]乌鲁木齐市农产品质量安全检测中心,新疆乌鲁木齐830000

出　　处：《科技资讯》2022年第15期214-216,共3页Science & Technology Information

摘　　要：该文研究了一阶导数离子色谱法在水质检测重叠峰定量中的应用。通过一阶导数处理后,实现了Cl^(-)和NO_(2)^(-)离子色谱峰的完全分离,并准确定量低含量的NO_(2)^(-)。采用标准HJ 84-2016对水样中NO_(2)^(-)的测定进行了验证。实验结果显示,相关系数为0.9998;检出限为0.004 mg/L;精密度、准确度及实际样品加标回收率结果均满足标准要求。In this paper,the application of first derivative ion chromatography in the quantification of overlapping peaks in water quality detection was studied.After the first derivative treatment,the complete separation of C1^(-) and NO_(2)^(-) was realized,and the low content NO_(2)^(-) was accurately quantified.The standard HJ 84-2016 was used to verify the determination of NO_(2)^(-) in water samples;the experimental results show that the correlation coefficient is 0.9998;the detection limit was 0.004 mg/L;the precision,accuracy and actual sample recovery rate all meet the standard requirements.

关 键 词：一阶导数离子 色谱法 氯离子 亚硝酸根离子 重叠峰 

分 类 号：X85[环境科学与工程—环境工程]