| 流动注射催化光度法测定痕量钼的研究 |
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| 引用本文： | 刘道杰 张爱梅. 流动注射催化光度法测定痕量钼的研究[J]. 营养学报, 1991, 13(1): 68-73 |
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| 作者姓名： | 刘道杰 张爱梅 |
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| 作者单位： | 聊城师范学院化学系，聊城师范学院化学系 山东 252000，山东 252000 |
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| 摘 要： | 根据Mo(Ⅵ)对H_2O_2氧化KI具有催化作用的原理,以淀粉为显色剂,建立了测定痕量钼的流动注射光度法。进样频率110次/h,线性范围0～0.4ppm,检出限3.2ppb。实际测定了土壤、粮食、人发中钼的含量,回收率为91％～108％。
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| 关 键 词： | 钼 流动注射分析 催化光度法 |
STUDY ON DETERMINATION OF TRACE MOLYBDENUM BY CATALYTIC FLOW INJECTION SPECTROPHOTOMETRY |
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| Liu Daojie,Zhang Aimei. STUDY ON DETERMINATION OF TRACE MOLYBDENUM BY CATALYTIC FLOW INJECTION SPECTROPHOTOMETRY[J]. Acta Nutrimenta Sinica, 1991, 13(1): 68-73 |
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| Authors: | Liu Daojie Zhang Aimei |
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| Abstract: | A catalytic spectrophotometric method for determination of trace molybdenum by flow injection analysis has been established, based on the catalytic oxidation of potassium iodide by hydrogen peroxide in the presence of molybedenum (VI) and the iodine produced is coloured with starch. The linear range and detection limit for molybdenum (VI) were 0 to 0.4 ppm and 3.2 ppb. The method has been successfully applied to determine molybdenum in the grain, soil and hair. |
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| Keywords: | molybdenum flow injection analysis catalytic spectrophotometry |
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