大学化学 >> 2021, Vol. 36 >> Issue (4): 2005043.doi: 10.3866/PKU.DXHX202005043

化学实验 上一篇    下一篇

氢化物发生-原子荧光光谱法在本科实验教学中的应用

李华敏(), 彭淑女, 陈招斌, 杨利民()   

  • 收稿日期:2020-05-15 录用日期:2020-06-15 发布日期:2020-06-30
  • 通讯作者: 李华敏,杨利民 E-mail:huaminli86@xmu.edu.cn;lmyang@xmu.edu.cn
  • 作者简介:Email: lmyang@xmu.edu.cn (杨利民)
    Email: huaminli86@xmu.edu.cn (李华敏)
  • 基金资助:
    国家自然科学基金(21701133)

Application of Hydride Generation-Atomic Fluorescence Spectrometry in Undergraduate Experimental Teaching

Huamin Li(), Shunü Peng, Zhaobin Chen, Limin Yang()   

  • Received:2020-05-15 Accepted:2020-06-15 Published:2020-06-30
  • Contact: Huamin Li,Limin Yang E-mail:huaminli86@xmu.edu.cn;lmyang@xmu.edu.cn

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摘要：

为拓展学生的视野，将氢化物发生-原子荧光光谱法应用于本科实验教学。本实验用氢化物发生-原子荧光光谱法对水样中的砷进行分析测定，对最佳实验条件如仪器载气流速进行了考查和优化，测定了方法的检出限、定量限和精密度等评价指标。通过课程学习，可以使学生掌握氢化物发生-原子荧光分光光度计的工作原理及其使用方法，掌握氢化物发生-原子荧光光谱法测定砷的定量分析方法，学会处理和分析实验数据，并能了解不同的原子光谱法的工作原理及应用领域。

关键词: 氢化物发生, 原子荧光光谱, 仪器分析实验, 实验教学

Abstract:

Hydride generation-atomic fluorescence spectrometry was applied to undergraduate experimental teaching to improve the knowledge of students. In this study, hydride generation-atomic fluorescence spectrometry was performed to detect arsenic in water samples. The best experimental conditions, such as the flow rate of the carrier gas, were investigated and optimized. The detection limit, quantification limit, and precision of the method were determined. Through the study of the course, students can master the working principle and operating method of hydride generation-atomic fluorescence spectrophotometry and grasp the quantitative analysis method of detecting arsenic through hydride generation-atomic fluorescence spectrometry. In addition, students can learn how to process and analyze experimental data and understand the working principles and application fields of different types of atomic spectrometry.

Key words: Hydride generation, Atomic fluorescence spectrometry, Instrumental analysis experiment, Experimental teaching