关键词: 分析化学实验, 智能手机, 滴定终点, 比色分析, 教学改革

Abstract: The teaching of analytical chemistry experiments is undergoing a pivotal transition from “classical operational training” to “intelligent thinking cultivation”. Smartphones, as mobile devices that integrate high-precision imaging, data processing, and algorithmic operations, offer a cost-effective and accessible technological solution for this transformation. This study systematically examines the application of smartphones in analytical chemistry experiment instruction through two approaches: utilizing smartphone cameras and color sensing technology to assist in titration endpoint determination, and implementing rapid quantitative analysis of target substances through smartphone-based RGB colorimetry. Furthermore, the paper evaluates how these applications enhance students’ comprehension of “intelligent measurement” and proposes a pedagogical progression from “instrument utilization” to “comparative analytical thinking”.

Key words: Analytical chemistry experiment, Smartphone, Titration endpoint, Colorimetric analysis, Teaching reform