大学化学 >> 2021, Vol. 36 >> Issue (9): 2101049.doi: 10.3866/PKU.DXHX202101049

所属专题: 分析化学课程与实验教学

教学研究与改革 上一篇    下一篇

石墨炉原子吸收光谱法用于环境水样中重金属离子测定——基体改进剂

唐安娜(), 高榕志, 王恪   

  • 收稿日期:2021-01-26 录用日期:2021-02-25 发布日期:2021-03-11
  • 通讯作者: 唐安娜 E-mail:tanganna@nankai.edu.cn
  • 作者简介:唐安娜, Email: tanganna@nankai.edu.cn
  • 基金资助:
    功能化纳米材料用于环境样品中金属离子的测定(F1027221)

Discussion on Matrix Modifiers in the Determination of Heavy Metal Ions in Environmental Water Samples by Graphite Furnace Atomic Absorption Spectrometry

Anna Tang(), Rongzhi Gao, Ke Wang   

  • Received:2021-01-26 Accepted:2021-02-25 Published:2021-03-11
  • Contact: Anna Tang E-mail:tanganna@nankai.edu.cn

摘要:

加入基体改进剂是石墨炉原子吸收光谱法中消除基体干扰常用的方法。但学生对于基体改进剂的选择和作用机理了解还仅停留在教科书层面。基于此,采用多元教学模式,使学生变被动为主动,通过文献调研、分组讨论、归纳总结及后续学生实验等方式,对石墨炉原子吸收光谱法用于环境水样中重金属离子测定的基体改进剂进行深入探讨。

关键词: 石墨炉原子吸收, 基体改进剂, 环境水样, 课程思政, 归纳总结

Abstract:

Adding matrix modifier is a common and efficient method to eliminate chemical interferences in graphite furnace atomic absorption spectrometry (GFAAS). The students' understanding of the choice and mechanism of matrix modifier is only at the textbook level. In the light of this, the multiple teaching modes are adopted to make students' learning activities changed from passive to active. Through literature investigation, group discussion, induction and summary and subsequent student experiments, the matrix modifier for the determination of heavy metal ions in environmental water samples by GFAAS is discussed in depth.

Key words: Graphite furnace atomic absorption spectrometry, Matrix modifier, Environmental water sample, Course ideology and politics, Induction and summary

MSC2000: 

  • G64