Amount of Copper(II) Ions in a Solution Cannot Be Determined Using the Hue Values

Autor/inn/en	Zhu, Pengfei; Ling, Yizhou
Titel	Amount of Copper(II) Ions in a Solution Cannot Be Determined Using the Hue Values
Quelle	In: Journal of Chemical Education, 99 (2022) 4, S.1553-1555 (3 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Zhu, Pengfei) ORCID (Ling, Yizhou)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.1c01074
Schlagwörter	Color; Telecommunications; Handheld Devices; Measurement; Chemistry; Science Experiments + Suchen Sie Ihr Suchwort? Colour; Farbbezeichnung; Farbe; Telekommunikationstechnik; Messverfahren; Chemie
Abstract	Conventional mobile phone colorimetry usually utilizes the RGB color mode to measure concentration of solutions, but the paper entitled "Determining the Amount of Copper(II) Ions in a Solution Using a Smartphone" proposes the use of hue ("H") to measure the concentration. It is pointed out that the "H" value increases with the increase of copper nitrate concentration. However, our experimental results show that the "H" value does not change with the concentration, which indicates that the amount of copper ions in a solution cannot be determined by "H" values. The errors in the paper may come from the deficiencies of materials and methods, resulting in large deviations. (As Provided).
Anmerkungen	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: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01