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題 名 | 使用中子活化分析技術進行一些埃及生物肥料樣本之元素分析=Uses of Neutron Activation Analysis Technique for Elemental Investigation of Some Egyptian Bio-Fertilizer Samples |
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作 者 | Abdel-haleem,A. S.; El-shershaby,A.; El-dine,N. Walley; Abdel-sabour,M. F.; | 書刊名 | 核子科學 |
卷 期 | 34:3 1997.06[民86.06] |
頁 次 | 頁215-223 |
分類號 | 341.94 |
關鍵詞 | 中子活化分析技術; 埃及; 生物肥料; 元素分析; Neutron activation; Biofertilizers; Rare earth elements; |
語 文 | 英文(English) |
英文摘要 | Neutron activation analysis (NAA) was applied for elemental investigation for four biofertilizers obtained from the ministry of agriculture in Egypt, namely Netrobeen, Rizobactreen and Ceerialeen as a nitrogen fixing biofertilizers, in addition phosphorous dissolving Bacteria (Phosphoreen) fertilizer were tested. The samples were irradiated in the first Egyptian Research Reactor (ET-RR-1) for a period of 48 h, with a thermal neutron flux of 4.4x10 �| n/cm ��. s. The data were collected and analyzed by means of the hyper pure germanium (HPGe) detection system and a PCA program. Twenty three elements were determined and the results were used to asses their effects on the environment as well as their potential toxic effects due to their different carriers origins. Netrobeen (N) sample contains the highest concentration of Cs, La, Hf, Fe, Ce and Sm. However, the highest Na, Cr, Co, Te, Ba, Eu, Yb, Hg, Lu and Th levels were found in the Ceerialeen (C). Rizobactreen (R) sample shows the highest Ca, Br, Au and U concentrations. It should be mentioned that phosphoreen (P) sample always showed the lowest metal content except Sb compared to other tested biofertilizers. |
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