Implementing Water Analysis Using Ion Chromatography into Early Undergraduate Chemistry Laboratory Curricula and Outreach Education

化学（12）我们采用两种离子色谱（IC）系统，在大学一年级和二年级的水分析中引入探究和发现为基础的实验项目，并通过向有天赋的中学生推广。通过离子色谱法准确分析各种水样中的阳离子和阴离子，提高学生的实验室体验，因为它超越了传统的滴定方法难以控制，详尽和繁琐。新模块对实验课程的影响是通过比较传统实验的动机和学习结果来评估的。

Chemistry (12) We employ two ion chromatography (IC) systems to introduce inquiry and discovery-based experimental projects in water analysis at both the college freshman and sophomore levels, as well as through outreach to gifted middle school students. Accurate analysis of cations and anions by ion chromatography in various water samples improves the laboratory experience of students, since it surpasses conventional titration methods that are difficult to control, exhaustive and tedious. The impact of the new modules on the laboratory curricula is evaluated by comparing motivation and learning with results from traditional experiments.