A Simple Colorimetric Procedure using a Smartphone Camera for Determination of Copper in Copper Supported Silica Catalysts

Autor:	Somkid Pencharee, Nuntaporn Moonrungsee, Jaroon Junsomboon, Nipat Peamaroon, Jaroon Jakmunee
Rok vydání:	2020
Předmět:	010401 analytical chemistry Relative standard deviation Analytical chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences Copper 0104 chemical sciences Analytical Chemistry Catalysis law.invention chemistry Linear range law Atomic absorption spectroscopy
Zdroj:	Journal of Analytical Chemistry. 75:200-207
ISSN:	1608-3199 1061-9348
Popis:	A simple and low cost colorimetric procedure using an Android smartphone was developed for determination of copper(II) in copper supported silica catalysts. The developed software was installed in a smartphone for measuring the intensity of the blue color produced by the reaction between copper(II) and 2-carboxy-2'-hydroxy-5'-sulfoformazyl-benzene in an acidic solution. More than one sample can be measured by taking only one photo shot. Under the selected conditions, the linear range from 0 to 5 mg/L was obtained with the detection and quantitation limits of 0.04 and 0.13 mg/L, respectively. The method provided a good precision with the percent relative standard deviation values less than 5%. The percent recoveries were in the range of 97–104%. The results corresponded well with those obtained by atomic absorption spectrophotometry. This developed method is convenient, rapid and simple with an uncomplicated device.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::195c98150b9cbb71994aef9494655473 https://doi.org/10.1134/s1061934820020136 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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