Tristimulus Colorimetry Using a Digital Still Camera and Its Application to Determination of Iron and Residual Chlorine in Water Samples

被引：0

作者：

Suzuki Y. ^{[1
]}

Endo M. ^{[2
]}

Jin J. ^{[3
]}

Iwase K. ^{[1
]}

Iwatsuki M. ^{[1
]}

机构：

[1] Department of Applied Chemistry, Interdisciplinary School of Medicine and Engineering, 4-3-11, Takeda, Kofu, Yamanashi

[2] Department of Chemistry and Chemical Engineering, Faculty of Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata

[3] Department of Chemistry, Faculty of Science, Shinshu University, 3-1-1, Asahi, Matsumoto, Nagano

来源：

Anal. Sci. | 2006年 / 3卷 / 410-414期

关键词：

Chlorine - Color - Color photography - Colorimeters - Digital cameras - Iron - Light sources - Photometry;

D O I：

10.2116/analsci.22.410

中图分类号：

学科分类号：

摘要：

Tristimulus colorimetry using a digital still camera (DSC) as a colorimeter has been developed. A photograph of a sample and standard solutions was taken simultaneously with the DSC, and it was transferred to a PC. On the PC, the colors of the sample and of the standard solutions were analyzed and L* (brightness), a* (red-green component), and b* (yellow-blue component) values were determined with laboratory-made software. A dedicated light-box containing white-color LEDs as light source was made of white acrylic to make constant exposure at each photograph. Various settings of the DSC, such as exposure mode, white balance, and so on, that affect analytical figures, were studied with determination of iron with 1,10-phenanthroline. This method was successfully applied to the determinations of iron in a river water sample and of residual chlorine in tap water samples with N,N-diethylphenylenediamine (DPD). © 2006, The Japan Society for Analytical Chemistry.

引用

页码：410 / 414

页数：4

共 12 条

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