Automatic Titrators in the Analytical Chemistry Laboratories

这个项目是购买六台自动滴定仪，以使学生熟悉这些设备的功能和局限性，这些设备在许多工作实验室中经常使用。这些装置在介绍性分析化学实验室用于三个实验（氧化还原滴定、中和滴定和离子选择电极直接电位滴定），在仪器分析实验室用于一个实验（卡尔·费舍尔滴定）。这两个实验室都是化学专业的必修课。导论课程也有很多来自其他系的学生，包括微生物学、动物学和相关的健康领域。自动化系统包括电位法和分光光度法端点检测模块，以便学生能够比较两种方法的能力。正在制作两盘录像带，以加强这些概念，并教授离子选择电极的操作理论。

This project is purchasing six automatic titrators to acquaint students with the capabilities and limitations of these devices which are routinely employed in many working laboratories. The units are being used for three experiments (oxidation-reduction titration, neutralization titration, and direct potentiometry with an ion selective electrode) in the Introductory Analytical Chemistry Laboratory, and one experiment (Karl Fischer titration) in the Instrumental Analysis Laboratory. Both laboratories are required of chemistry majors. The introductory course is also heavily populated by students from other departments, including microbiology, zoology, and allied health fields. The automated systems include modules for both potentiometric and spectrophotometric endpoint detection, so that students are able to compare the capabilities of the two methods. Two video tapes are being produced to reinforce these concepts and to teach the theory of operation of ion selective electrodes.