﻿ 全面认识酸碱缓冲溶液的缓冲能力——由高校通用教材中一道例题引发的思考

### 全面认识酸碱缓冲溶液的缓冲能力——由高校通用教材中一道例题引发的思考

1. 1 陕西师范大学化学化工学院, 陕西省生命分析化学重点实验室, 西安 710062
2 陕西师范大学药用资源与天然药物化学教育部重点实验室, 西安 710062
• 收稿日期:2021-03-08 录用日期:2021-04-07 发布日期:2021-05-06
• 通讯作者: 张延妮 E-mail:ynzhang@snnu.edu.cn
• 作者简介:张延妮, Email: ynzhang@snnu.edu.cn
• 基金资助:
陕西师范大学研究生教育教学改革研究项目(GERP-19-60);陕西师范大学研究生教育教学改革研究项目(GERP-20-18)

### Comprehensive Understanding of Buffer Function of Buffer Solution: Inspired by an Example in a Textbook

Xuanfeng Yue1, Yajuan Duan1, Junyue Sun1, Yajun Jian1, Yanni Zhang2,*()

1. 1 Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
2 Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, Shaanxi Normal University, Xi'an 710062, China
• Received:2021-03-08 Accepted:2021-04-07 Published:2021-05-06
• Contact: Yanni Zhang E-mail:ynzhang@snnu.edu.cn

Abstract:

Two indices addressing buffer solution are differentiated, which are used to gauge punctual and durative buffer function, respectively. Buffer strength β and buffer capacity α are accordingly suggested for the names of the indices (their corresponding mathematic expressions are differential formula and integral formula, respectively). The feasibility of introducing differential formula into calculation of durative capacity in the textbooks is intensively discussed, and the applicable conditions of this practice are pointed out, which forms the basis of suggestions for improvement on some contents of the textbooks.