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Calibration of Shahid's Analytical Method for Adulterated Zn-EDTA Fertilizers by Ion Chromatography and Atomic Absorption Spectroscopy

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dc.contributor.author MUHAMMAD SALIK, Ali Khan
dc.contributor.author MUHAMMAD AKRAM
dc.contributor.author SHAHID MAHMOOD MIAN
dc.contributor.author RANA JAVAID IQBAL
dc.contributor.author MUHAMMAD AKRAM QAZI
dc.date.accessioned 2023-11-03T04:27:19Z
dc.date.available 2023-11-03T04:27:19Z
dc.date.issued 2010-10-20
dc.identifier.citation salik Khan, M. (2010). Calibration of shahid’s analytical method for adulterated zn-edta fertilizers by ion chromatography and atomic absorption spectroscopy. Journal of the Chemical Society of Pakistan, 32(6), 613. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19903
dc.description.abstract Chelated zinc fertilizers are usually recommended in calcareous alkaline soils to provide Zn nutrition in order to prevent possible Zn precipitation. In Punjab (Pakistan), Zn.EDTA products are being manufactured, and marketed to meet the zinc requirement of various crops grown in Zn deficient soils. Under fertilizer control order, 1973 (amended), their quality has to be monitored by the Agriculture Department, Government of the Punjab. None of the traditional method was found suitable which can separate the mineral fraction from that of chelated adulterated fertilizer except for those methods based on ion chromatography. Calibration of ion chromatography method was carried out by determining the mineral Zn fraction leading to estimate remaining Zn.EDTA fraction in fertilizer samples of adulterated nature i.e. mixture of chelated and mineral fraction. In order to achieve the objective atomic absorption spectroscopy was coupled with ion chromatography. The method offers a specific, reliable technique for determination of chelated zinc in fertilizers. In the first step chelation was broken down with concentrated sulphuric acid treatment and total zinc contents were determined by atomic absorption spectroscopy. In second step, non-chelated (mineral) portion of zinc was determined by ion chromatography using cation column and conductivity detector. Chelated zinc was calculated by subtracting non-chelated (mineral) fraction from total zinc contents. 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 Calibration of Shahid's Analytical Method for Adulterated Zn-EDTA Fertilizers by Ion Chromatography and Atomic Absorption Spectroscopy en_US
dc.type Article en_US


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