期刊
ANALYTICAL CHEMISTRY
卷 82, 期 2, 页码 531-542出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac901753c
关键词
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资金
- Ministerio de Educacion y Ciencia, Direccion General de Ensenanza Superior (Spain) [CTQ2005-09060-CO2-01, CTQ2005-09060-CO2-02, CTQ2009-14428-C02-01]
- Junta de Andalucia [P06-FQM-01467]
The hue or H component of the hue, saturation, value (HSV) color space has been studied as a quantitative analytical parameter for bitonal optical sensors. The robust nature of this parameter provides superior precision for the measurement of sensors which change colors, with the speciation of some indicator molecule. This parameter has been compared to red, green, blue (RGB) intensity and RGB absorbance along with differences and ratios of both intensity and absorbance and has been demonstrated to be 2 to 3 times superior. The H value maintains this superior precision with variations in indicator concentration, membrane thickness, detector spectral responsivity, and illumination. Because this parameter is stable, simple to calculate, easily obtained from commercial devices such as scanners and digital cameras, continuous over the entire color gamut, and bound between values of 0 and 1, it shows great promise for use in it variety of sensing applications including imaging, automated analysis, pharmaceutical sensing, lab-on-a-chip devices, and quality control applications.
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