TY - JOUR
T1 - Spectrophotometric system based on a device created by 3D printing for the accommodation of a webcam chamber as a detection system
AU - Danchana, Kaewta
AU - Phansi, Piyawan
AU - T. de Souza, Cheilane
AU - L.C. Ferreira, Sergio
AU - Cerdà, Víctor
N1 - Funding Information:
The authors acknowledge financial support from Spanish Ministry of Economy and Competitiveness (MINECO) through Project CTQ-2016-77155 -R co-financed by FEDER funds. Kaewta Danchana acknowledges the financial support from the Conselleria d’Innovació , Recerca I Turisme of the Govern de les Illes Balears and of the Fons Social Europea ( FPI/1867/2016 ). The financial support from Thepsatri Rajabhat University for P. Phansi is gratefully acknowledged.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - The development of a simple and economical spectrophotometric system based on the use of a device created by 3D printing and the electronics necessary to control the intensity of the radiation source was described. The measurements are made with a low-cost digital webcam. The entire system is only powered through the USB outputs of a computer, which makes the portable and really practical system for the measurements in the field. This method was applied to determine iron (II) in waters using o-phenanthroline as chromogenic reagent giving a red complex, and also to hypochlorite determination using tetramethylbenzidine as the reagent providing a yellow color. The calibration curves were built using a mathematical algorithm making a RGB deconvolution. The intense of colors obtained from a webcam in each concentration of analyte had a relationship with the absorbance values. In order to confirm the accuracy and precision of this method, a traditional spectrophotometer was used for validation.
AB - The development of a simple and economical spectrophotometric system based on the use of a device created by 3D printing and the electronics necessary to control the intensity of the radiation source was described. The measurements are made with a low-cost digital webcam. The entire system is only powered through the USB outputs of a computer, which makes the portable and really practical system for the measurements in the field. This method was applied to determine iron (II) in waters using o-phenanthroline as chromogenic reagent giving a red complex, and also to hypochlorite determination using tetramethylbenzidine as the reagent providing a yellow color. The calibration curves were built using a mathematical algorithm making a RGB deconvolution. The intense of colors obtained from a webcam in each concentration of analyte had a relationship with the absorbance values. In order to confirm the accuracy and precision of this method, a traditional spectrophotometer was used for validation.
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U2 - 10.1016/j.talanta.2019.120250
DO - 10.1016/j.talanta.2019.120250
M3 - Article
C2 - 31514846
AN - SCOPUS:85070576048
SN - 0039-9140
VL - 206
JO - Talanta
JF - Talanta
M1 - 120250
ER -