Performance analysis of a Colorimeter designed with RGB color sensor

The ldquoGold standardrdquo for testing blood glucose in Colorimeters is the measurement of glucose in a plasma sample obtained from a vein. This method involves a chemical reaction activated by an enzyme called Glucose Oxidase. Most of the Colorimeters used for the Glucose measurement in Clinical laboratories perform well in the 100-400 mg/dL range of blood glucose. Due to the requirement of highly monochromatic source and photo detector, an error of 5 to 20% is common in these Colorimeters. This paper aims to mitigate the error in measurement by modernizing the plasma glucose testing equipment i.e., Colorimeter with White Source and RGB Color Sensor through Color measurement technique for better clinical diagnosis. As presumed, experimental results show that this modified Colorimeter can perform well with better accuracy even above the Glucose concentration of 400 mg/dL.