摘要
随着仪器设备的快速发展,现代监测技术实践也急需现代化改革。本实验利用带IonPac AS23离子交换柱的离子色谱仪,依据待测阴离子的浓度与其电导率之关联,标准曲线法定量测定降水中7种阴离子。主要包括实验设计的原理、目的、主要内容和考核目标等,同时探索了如淋洗液浓度、流速和柱温等实验条件,以及实验方法精密度和准确度评价。通过实际实验实施,激发了学生学习热情和兴趣,巩固了离子色谱法测定的有关基本理论知识,利于学生创新能力和科学素养的培养。
With the rapid development of instruments and equipment,modern monitoring technology practice is also in urgent need of modernization reform.The ion chromatograph with IonPac AS23 ion exchange column is used to quantitatively determine seven kinds of anions in precipitation by standard curve method according to the correlation between the concentration of anions and their electrical conductivity.This study mainly includes the principle,purpose,main content and assessment objectives of experimental design,and explores experimental conditions such as eluent concentration,flow rate and column temperature,as well as the evaluation of the precision and accuracy of this method.Through practical experimental implementation,students’enthusiasm and interest in learning are stimulated,and the basic theoretical knowledge about ion chromatography determination is consolidated,which is conducive to the cultivation of students’innovation ability and scientific literacy.
作者
王俊霞
高明
高仕谦
沈晓芳
沈舒苏
秦宏兵
袁怡
Wang Junxia;Gao Ming;Gao Shiqian;Shen Xiaofang;Shen Shusu;Qin Hongbing;Yuan Yi(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;Jiangsu Key Laboratory of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China)
出处
《分析仪器》
CAS
2023年第4期49-54,共6页
Analytical Instrumentation
基金
江苏省高等教育教改项目(2021JSJG210)
苏州科技大学教改项目(21ZXKC-01)
苏州科技大学品牌课程(PX-1322100)。
关键词
离子色谱法
现代环境监测技术
创新性实验
实验教学
Ion chromatography
Modern environmental monitoring technique
Innovative experiment
Experimental teaching
