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ERIC Number: EJ1119571
Record Type: Journal
Publication Date: 2016-Nov
Pages: 6
Abstractor: As Provided
ISSN: ISSN-0021-9584
Investigating Arsenic Contents in Surface and Drinking Water by Voltammetry and the Method of Standard Additions
Cheng, Anran; Tyne, Rebecca; Kwok, Yu Ting; Rees, Louis; Craig, Lorraine; Lapinee, Chaipat; D'Arcy, Mitch; Weiss, Dominik J.; Salau¨n, Pascal
Journal of Chemical Education, v93 n11 p1945-1950 Nov 2016
Testing water samples for arsenic contamination has become an important water quality issue worldwide. Arsenic usually occurs in very small concentrations, and a sensitive analytical method is needed. We present here a 1-day laboratory module developed to introduce Earth Sciences and/or Chemistry student undergraduates to key aspects of this topical issue. In this practical session, students were first introduced to the worldwide problems of arsenic contamination in groundwaters as a motivation of the experimental work. The latter consisted of quantification of arsenic levels in surface and drinking water at trace levels (nM, ppb) using the electroanalytical technique of anodic stripping voltammetry and the method of standard addition. Results were discussed with respect to water quality guidelines and geology. The complexity of data interpretation in this exercise can be tailored to a range of abilities and subject areas suited to the students and the course.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Bangladesh
Grant or Contract Numbers: N/A