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Journal of Analytical Science and Technology
Fig. 2 | Journal of Analytical Science and Technology

Fig. 2

From: Investigation into the predictive performance of colorimetric sensor strips using RGB, CMYK, HSV, and CIELAB coupled with various data preprocessing methods: a case study on an analysis of water quality parameters

Fig. 2

Colorimetric sensors and sensor arrays after immersion in standard solutions at different concentrations. It was noted that only the first reactive zone that was used to measure NO3-. The second zone was used to measure the concentration of nitrite ion (NO2-) which was not used in this research study

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