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Novel approaches for colorimetric measurements in analytical chemistry – A review
(2020-01-01)
Colorimetric techniques have been developed and used in routine analyses for over a century and apparently all their potentialities have been exhaustively explored. However, colorimetric techniques have gained high visibility ...
Digital image analysis to standardize a photometric method in colorimetric quantification
(TAYLOR & FRANCIS INC, 2008)
Techniques applying digital images increasingly have been used in biology, medicine, physics, and other research areas. The image coordinates can represent light intensities values to be detected by a CCD. Based on this ...
Colorimetric determination of ambient ozone using indigo blue droplet
(2006-04-03)
A simple and sensitive method based on a liquid droplet is described for the measurement of atmospheric ozone. A 30 μL drop of indigo blue solution is suspended in a flowing-air sampling stream. The ozone collected reacts ...
Colorimetric determination of ambient ozone using indigo blue droplet
(2006-04-03)
A simple and sensitive method based on a liquid droplet is described for the measurement of atmospheric ozone. A 30 μL drop of indigo blue solution is suspended in a flowing-air sampling stream. The ozone collected reacts ...
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations
(2015-07-01)
This article describes the application and performance of an inexpensive, simple and portable device for colorimetric quantitative determination of drugs in pharmaceutical preparations. The sensor is a light detector ...
Polymeric chemosensor for the colorimetric determination of the total polyphenol index (TPI) in wines
We have developed a new method for the rapid and inexpensive determination of the total polyphenol index (TPI) in wines by simply immersing our sensory film in red or white wines and visually checking the colour change ...
Colorimetric image analysis as a factor in assessing the quality of pork ham slices during storageAnálisis colorimétrico de imágenes como factor de evaluación de la calidad de rebanadas de jamón de cerdo durante almacenamiento
(Revista mexicana de ingeniería química, 2015)
This study analysed the colour changes of stored pork ham slices at two temperatures (4 and 8°C) to compare two imaging methodologies for estimating colour changes over time in CIELAB colour spaces through a DigiEye® and ...