Investigation Of Chlorpyrifos By Sensitive And Selective Spectrophotometric Method In Different Samples

Authors

  • Jaya Singh Thakur Department of Applied Chemistry, Shri Shankrachrya Institute of Professional Management and Technology, Raipur, (C.G.) -492015, INDIA. Mobile- +917828606975
  • Rakesh Singh Dhundhel Department of Applied Chemistry, Shri Shankrachrya Institute of Professional Management and Technology, Raipur, (C.G.) -492015, INDIA. Mobile- +917828606975
  • Rajmani Patel Department of Chemistry, Government College, Bhanpuri, District-Bastar (C.G.), INDIA.

Keywords:

Spectrophotometer, chlorpyrifos, p-aminoacetophenone, environmental and biological samples.

Abstract

A new and highly sensitive spectrophotometric method for the determination of widely used
organophosphorus insecticide chlorpyrifosis done. The method is based on alkaline hydrolysis of chlorpyrifos to 1,2,4
trichloropyridine, followed by coupling with diazotized p-aminoacetophenone in alkaline medium. The absorption
maxima of the yellowish-orange dye formed is measured at 450 nm. Beer’s law is obeyed over the concentration
range of 4 to 35µg in a final solution volume of 25 ml (0.16 - 1.4ppm). The molar absorptivity, sandell’s sensitivity,
correlation coefficient have been determined. The method is simple sensitive and free from interferences of other
pesticides and diverse ions. The method has been satisfactorily applied to the determination of chlorpyrfos in different
environmental and biological samples.

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Published

2022-08-23

Issue

Vol. 4 No. 15 (2017): ISUNCE-2017 (International Seminar on Utilization of Non Conventional Energy Sources for Sustainable Development of Rural Areas)

Section

Articles

How to Cite

Investigation Of Chlorpyrifos By Sensitive And Selective Spectrophotometric Method In Different Samples. (2022). International Journal of Advance Engineering and Research Development (IJAERD), 4(15), -. https://ijaerd.org/index.php/IJAERD/article/view/6126

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