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Spectrophotometric Method for Quantification of Fenoxaprop-p-ethyl Herbicide in Commercial Formulations and Agricultural Samples

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dc.contributor.author JASMIN SHAH
dc.contributor.author MUHAMMAD RASUL JAN
dc.contributor.author FARHAT-UN-NISA SHEHZAD
dc.contributor.author MIAN MUHAMMAD
dc.date.accessioned 2023-11-10T04:50:50Z
dc.date.available 2023-11-10T04:50:50Z
dc.date.issued 2010-08-20
dc.identifier.citation Shah, J. (2010). Spectrophotometric method for quantification of fenoxaprop-p-ethyl herbicide in commercial formulations and agricultural samples. Journal of the Chemical Society of Pakistan, 32(6), 537. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19934
dc.description.abstract A simple spectrophotometric method was developed for determination of fenoxaprop-p-ethyl herbicide in agricultural samples. The method is based on the acid hydrolysis of fenoxaprop-p-ethyl to form 6-chloro-2,3-dihydrobenzoxazol-2-one (CDHB) and ethyl 2-(4-hydroxyphenoxy) propionate (EHPP). The 6-chloro-2,3- dihydrobenzoxazol-2-one was used as a coupling reagent in diazotization reaction. The absorbance of the azo dye was measured at 430 nm. The reaction conditions were optimized for hydrolysis as well as for the diazotization reaction. The Beer's law was obeyed over the concentration range of 0.2-25 µg mL⁻¹with molar absorptivity of 1.4 x 10⁴ L mol⁻¹ cm⁻¹. The limit of detection (LOD) and limit of quantification (LOQ) were found to be 0.029 and 0.098 µg mL⁻¹, respectively. The method has been successfully applied to the determination of fenoxaprop-p-ethyl I commercial formulations and various agricultural samples. The % recoveries were found in the range of 95-97%. en_US
dc.description.sponsorship The chemical society of Pakistan is an approved society from the PSF. en_US
dc.language.iso en en_US
dc.publisher HEJ Research Institute of Chemistry, University of Karachi, Karachi. en_US
dc.title Spectrophotometric Method for Quantification of Fenoxaprop-p-ethyl Herbicide in Commercial Formulations and Agricultural Samples en_US
dc.type Article en_US


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