Investigation Of Chlorpyrifos By Sensitive And Selective Spectrophotometric Method In Different Samples
| Author(s) | : | Jaya Singh Thakur, Rakesh Singh Dhundhel, Rajmani Patel |
| Institution | : | Department of Applied Chemistry, Shri Shankrachrya Institute of Professional Management and Technology, Raipur, (C.G.) -492015, INDIA. Mobile- +917828606975 |
| Published In | : | Vol. 4, Issue 15 — January 2017 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
A new and highly sensitive spectrophotometric method for the determination of widely usedorganophosphorus insecticide chlorpyrifosis done. The method is based on alkaline hydrolysis of chlorpyrifos to 1,2,4trichloropyridine, followed by coupling with diazotized p-aminoacetophenone in alkaline medium. The absorptionmaxima of the yellowish-orange dye formed is measured at 450 nm. Beer’s law is obeyed over the concentrationrange 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 otherpesticides and diverse ions. The method has been satisfactorily applied to the determination of chlorpyrfos in differentenvironmental and biological samples.
Jaya Singh Thakur, Rakesh Singh Dhundhel, Rajmani Patel, “Investigation Of Chlorpyrifos By Sensitive And Selective Spectrophotometric Method In Different Samples”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 15, pp. -, January 2017.
