Low-Cost Turbidimeter, Colorimeter, and Nephelometer for the Student Laboratory

被引：6

作者：

Kovacic, Marin ^{[1
]}

Asperger, Danijela ^{[2
]}

机构：

[1] Univ Zagreb, Dept Polymer Engn & Organ Chem Technol, Fac Chem Engn & Technol, Marulivev Trg 19, HR-10000 Zagreb, Croatia

[2] Univ Zagreb, Dept Analyt Chem, Fac Chem Engn & Technol, Marulivev Trg 19, HR-10000 Zagreb, Croatia

来源：

JOURNAL OF CHEMICAL EDUCATION | 2019年 / 96卷 / 11期

关键词：

Second-Year Undergraduate; Upper-Division Undergraduate; Analytical Chemistry; Hands-On Learning/Manipulatives; Instrumental Methods; Water/Water Chemistry; SULFATE;

D O I：

10.1021/acs.jchemed.9b00252

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A low-cost turbidimeter, colorimeter, and nephelometer (TCN) multipurpose instrument applicable for undergraduate, graduate, and research laboratories is demonstrated within this work. The instrument relies on simple and robust electronics while using a PC sound card as an analog-to-digital converter. The performance of the instrument was evaluated by measuring sulfate content in water. The analyses were compared to a research-grade UV/vis spectrophotometer. Despite its simplicity, the instrument was demonstrated to be an interesting and viable means for hands-on approach teaching in student laboratories.

引用

页码：2649 / 2654

页数：11

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