Determination of Major and Trace Metals in Date Palm Fruit (Phoenix Dactilifera) Samples Using Flame Atomic Absorption Spectrophotometry (Faas)
| dc.contributor.advisor | Tessema, Merid (PhD) | |
| dc.contributor.author | Tamirat, Feven | |
| dc.date.accessioned | 2020-08-28T08:52:44Z | |
| dc.date.accessioned | 2023-11-09T16:18:42Z | |
| dc.date.available | 2020-08-28T08:52:44Z | |
| dc.date.available | 2023-11-09T16:18:42Z | |
| dc.date.issued | 2020-07-06 | |
| dc.description.abstract | The aim of this study was to investigate the levels of major and trace metals in date palm fruit samples from Afar, Iraq, and Saudi Arabia. Levels of selected metals (Na, Ca, Fe, Zn, Ni, Mn, Cu, Cd and Pb were determined by flame atomic absorption spectrophotometry (FAAS). Known weight of oven dried date palm fruit samples were wet digested using 3 mL HNO3 and 1 mL HClO4 for 3 hours at a temperature 300 oC. The mean concentration range (mg/kg) of each metal in date palm fruit sample were Ca (205.5-299), Na (134-320), Fe (38.8-115), Ni (25.1-42.2), Zn (9.27-27.9), Mn (7.11-16.3), Cu (0.002-1.15). Cd and Pb were not detected. The accuracy of the optimized procedure was evaluated by analyzing the digest of the spiked samples with standard solutions prepared and the percentage recoveries varied from 91.6 % to 97.8 % which is an acceptable range. The mean concentration of metals in the three types of date palm fruit samples indicated higher concentration of Ca in date palm fruit from Afar and Saudi Arabia. Higher concentration of Na was found in date palm fruit from Iraq as compared to the Afar and Saudi Arabia date palm fruit samples. ANOVA indicated that there is no significant difference among the sample means. Person correlation coefficients of metals from date palm fruit between Fe-Na, Na-Zn, Na-Mn, Ca- Zn, Fe-Ni, Fe-Mn, Mn-Ni showed very strong correlation while Ni-Na, Fe-Cu, Cu-Ni showed strong negative. Na-Cu, Ca-Fe, Ca-Ni, Ca- Mn, Ca-Cu, Fe-Zn, Ni-Zn, Zn-Mn, Zn-Cu showed moderate, weak, and very weak correlation. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/22173 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Date Palm Fruit | en_US |
| dc.subject | Digestion | en_US |
| dc.subject | Optimization | en_US |
| dc.subject | Major Metals | en_US |
| dc.subject | Trace Metals | en_US |
| dc.title | Determination of Major and Trace Metals in Date Palm Fruit (Phoenix Dactilifera) Samples Using Flame Atomic Absorption Spectrophotometry (Faas) | en_US |
| dc.type | Thesis | en_US |