Complexometric Determination of Mercury Based on a Selective Masking Reaction

摘要

In undergraduate analytical chemistry courses, students usually perform well-defined laboratory activities using synthetic solutions and sample mixtures prepared by the instructors. The laboratory activities are rarely based on real samples. From this diagnostic, we implemented an optional activity at the end of the first analytical chemistry course. We suggested that the students propose a lab project that awakens their curiosity and perform it with the instructor's supervision. The project described here was one of the most interesting proposed experiments.