DETERMINATION OF SOME ESSENTIAL (Zn&Cu) AND TOXIC METALS (Pb&Cd) IN ETHIOPIAN KALE (BRASSIC CARINATAA.)USING ICP-OES MARKETEDINBAHIR DAR CITY,ETHIOPIA

Shumet, Asmare

dc.contributor.author	Shumet, Asmare
dc.date.accessioned	2018-11-01T05:21:18Z
dc.date.available	2018-11-01T05:21:18Z
dc.date.issued	2018-11-01
dc.identifier.uri	http://hdl.handle.net/123456789/9065
dc.description.abstract	Ethiopian kale is the most consumed vegetable in Bahir Dar, prepared in many different ways for eating. It can be pickled, fermented for dishes or eaten raw. In present study, two essential metals (zinc (Zn) and copper (Cu)) and two toxic metals (cadmium (Cd) and lead (Pb)) were determined in Ethiopian kale samples which are marketed in Bahir Dar city, Ethiopia. Three Ethiopian kale samples were randomly collected from three different markets. The Concentrations of understudy heavy metals were determined by inductively coupled plasma optical emission spectrometry (ICP-OES) followed by conventional wet-acid digestion on an electric hot plate. The mean concentration of Zn, Cu, Pb and Cd were 65.2±0.207,15.5±0.040,5.11±0.045 and 0.3±0.0014mg/Kgrespectively.Excel computer system, one-way analysis of variance (ANOVA) and origin software were used for data analysis. Except forCd inEthiopian kale samples, the ANOVA result showed that there is no significance difference in the mean concentration of toxic metals(P>0.05). The results were compared with the provisional maximum tolerable daily intake (PMTDI) which is set by JECFA. The concentration of Pb and Cd heavy metals were above the limit. Whereas,the concentration of essential metals Zn and Cu in the samples were below the limit. Keywords:Toxic metals,Essential metals, Ethiopian kale,inductively coupled plasma optical emission spectrometry.	en_US
dc.language.iso	en	en_US
dc.subject	CHEMISTRY	en_US
dc.title	DETERMINATION OF SOME ESSENTIAL (Zn&Cu) AND TOXIC METALS (Pb&Cd) IN ETHIOPIAN KALE (BRASSIC CARINATAA.)USING ICP-OES MARKETEDINBAHIR DAR CITY,ETHIOPIA	en_US
dc.type	Thesis	en_US