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Purpose The purpose of this paper is to develop a sensitive and cost effective colorimetric sensor for detection of methyl parathion (MP) using simple circuitry. A simple and sensitive concept of colorimetric sensor instrument represents a rapidly expanding field of sensor techniques to monitor MP neurotoxins is described within certain conditions of producing color in samples. The variation of intensity of color with concentration provides discrimination between different concentrations of MP. The colorimetric instrument displays well‐defined signals towards hydrolyzed samples of MP. Design/methodology/approach The principle of light intensity measurement has been applied to measure various concentrations of MP based on Lambert‐Beer theory. This device and its processes are useful for quantitative analysis of MP. The detection limits were found within a range of 0.1‐1.5 ppm. Findings The experiments from sophisticated analytical techniques are costly and time‐consuming processes that validate the proposed system. Practical implications This paper's original proposition of using quantification of MP with colorimetric sensor instrument obtained promising results. Originality/value The colorimetric sensor instrument provides a new method for quantification of MP in unknown samples within detection limits.
Sharma et al. (Sat,) studied this question.
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