University Chemistry ›› 2022, Vol. 37 ›› Issue (6): 2107124.doi: 10.3866/PKU.DXHX202107124

• Chemistry Laboratory • Previous Articles     Next Articles

Improvement of Laboratory Teaching and Practice of Determination of Iron with Phenanthroline

Yue Zhang, Xiaoyan Wang, Suhua Gao()   

  • Received:2021-07-31 Accepted:2021-08-30 Published:2021-10-12
  • Contact: Suhua Gao E-mail:466341451@qq.com

Abstract:

According to the feedback of students and problems in laboratory course in recent years, the improvement of determination of iron with phenanthroline (Phen) is conducted. On the basis of the determination of total Fe with the standard curve, the determination of the molar absorption coefficient of complex compound (Phen-Fe3+, Phen-Fe2+), and the concentration of Fe2+ and Fe3+ of water samples are supplemented. The improvement of experimental content, can not only solve the doubt and enhance students' interests, but also guide students to actively think and cultivate their ability to solve practical problems.

Key words: Analytical chemistry experiment, Phenanthroline, Teaching improvement

MSC2000: 

  • G64