PMID: 15228122Jul 2, 2004Paper

A simple and portable colorimeter using a red-green-blue light-emitting diode and its application to the on-site determination of nitrite and iron in river-water

Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry
Yasutada SuzukiMasaaki Iwatsuki

Abstract

A portable colorimeter using a red-green-blue light-emitting diode as a light source has been developed. An embedded controller sequentially turns emitters on and off, and acquires the signals detected by two photo diodes synchronized with their blinking. The controller calculates the absorbance and displays it on a liquid-crystal display. The whole system, including a 006P dry cell, is contained in a 100 x 70 x 50 mm aluminum case and its mass is 280 g. This colorimeter was successfully applied to the on-site determination of nitrite and iron in river-water.

Citations

Sep 9, 2004·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Susumu KawakuboMasaki Iwatsuki
Mar 19, 2011·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Susumu KawakuboKazuya Hattori
May 12, 2011·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Junpei ShindoSusumu Kawakubo
Jul 26, 2011·Journal of Automated Methods & Management in Chemistry·Moisés KnochenHeinkel Bentos
May 31, 2006·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Yasutada SuzukiMasaaki Iwatsuki
Apr 23, 2010·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Tomoki YabutaniJunko Motonaka
May 15, 2010·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Yasutada SuzukiSusumu Kawakubo
Jun 19, 2010·Journal of Oral Rehabilitation·T NokubiY Maeda
Aug 3, 2007·Journal of Automated Methods & Management in Chemistry·Eva Ródenas-TorralbaMiguel de la Guardia
Jul 12, 2017·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Yuya HasegawaSusumu Kawakubo
Jun 25, 2020·Sensors·Daniel Carreres-PrietoJuan Suardiaz-Muro
Oct 7, 2020·Sensors·Daniel Carreres-PrietoJuan Suardiaz-Muro

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