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黄磷氧化物对大鼠肾脏的影响 被引量:1
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作者 牛庆茂 孙侠 李泽民 《医学动物防制》 2000年第11期606-609,共4页
本实验观察了黄磷急性及亚急性呼吸道染毒对大鼠肾脏的影响。结果表明染毒后动物血清磷、尿磷、肾磷值均升高,尿蛋白含量升高,尿γ—谷氨酰转移酶(γ—GT)、尿酸性磷酸酶(ACP)活性增高,内生肌酐清除率下降。提示黄磷急性实验造成肾小球... 本实验观察了黄磷急性及亚急性呼吸道染毒对大鼠肾脏的影响。结果表明染毒后动物血清磷、尿磷、肾磷值均升高,尿蛋白含量升高,尿γ—谷氨酰转移酶(γ—GT)、尿酸性磷酸酶(ACP)活性增高,内生肌酐清除率下降。提示黄磷急性实验造成肾小球滤过功能的损害和肾小管的损伤,而亚急性实验主要影响到肾小管。 展开更多
关键词 黄磷氧化物 大鼠 肾脏 尿酶 肾损害
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Bio-decomposition of rock phosphate containing pyrites by Acidithiobacillus ferrooxidans 被引量:2
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作者 池汝安 肖春桥 +2 位作者 黄晓慧 王存文 吴元欣 《Journal of Central South University of Technology》 EI 2007年第2期170-175,共6页
Leaching soluble phosphorus from rock phosphate containing pyrites by Acidithiobacillus ferrooxidans (A.f.) is feasible, and the reaction mechanism is as follows. Pyrites are oxidized by A.f. to produce H_2SO_4 and Fe... Leaching soluble phosphorus from rock phosphate containing pyrites by Acidithiobacillus ferrooxidans (A.f.) is feasible, and the reaction mechanism is as follows. Pyrites are oxidized by A.f. to produce H_2SO_4 and FeSO_4; the rock phosphate is decomposed by H_2SO_4, forming soluble phosphorus compounds; and Fe2+ from FeSO_4 is oxidized to Fe^3+, providing energy for the growth of A. f.. In this process, as H_2SO_4 is produced in the reaction, an acidic condition in the culture medium is formed, which benefits the growth of A. f. and aids both continuous oxidation of pyrites and leaching of soluble phosphorus from rock phosphate. The fraction of phosphorous leached can reach the largest in the presence of 1.0 g/L Fe^3+, 200 mg/L Mg^2+ and 400 mg/L NH_4^+. The optimal technological parameters on the fraction of phosphorous leached are as follows: the volume fraction of inocula of A. f., the mass ratio of pyrites to rock phosphate and the pH value are in ranges of 5%-25%, 3:1-5:1 and 1.8-2.2, respectively. 展开更多
关键词 bio-deeomposition rock phosphate PYRITES Acidithiobacillusferrooxidans
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