The monitoring of metals in commercial products is essential for protecting public health against the hazards of metal toxicity. This article presents a guided inquiry (GI) experimental lab approach in a quantitative analysis lab class that enabled students’ to determine the levels of aluminum in deodorant brands. The utility of a GI experimental lab introduced in the quantitative analysis lab class as part of an active learning hands-on-experience approach enhances student learning, improves students’ critical thinking and problem solving skills, and motivates underrepresented students to work independently in solving a real-world scenario-type problem. Students were required to develop certain lab skills at the start of the semester and apply these skills toward the end of the semester to investigate the GI project. The GI project that analyzes for aluminum improves the overall student engagement, enthusiasm for the quantitative analysis laboratory course, and even the overall success rate in scientific report writing.

中文翻译：

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香体剂品牌中铝的定量测定：定量分析实验室中的指导性探究式学习经验

监视商业产品中的金属对于保护公众健康免受金属毒性危害至关重要。本文在定量分析实验室课程中介绍了一种指导性探究（GI）实验实验室方法，该方法使学生能够确定除臭剂品牌中的铝含量。作为主动学习动手实践方法的一部分，在定量分析实验室课程中引入的GI实验实验室的效用可增强学生的学习能力，提高学生的批判性思维和解决问题的能力，并激励代表性不足的学生独立解决问题。现实场景类型问题。在学期开始时，要求学生发展某些实验室技能，并在学期末应用这些技能来研究GI项目。