| 催化光度法测定痕量钴—Co(Ⅱ)—桑色素—H_2O_2体系 |
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| 引用本文： | 陈广汶,王亚林. 催化光度法测定痕量钴—Co(Ⅱ)—桑色素—H_2O_2体系[J]. 淮北煤炭师范学院学报(自然科学版), 1995, 0(3) |
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| 作者姓名： | 陈广汶 王亚林 |
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| 作者单位： | 淮北煤师院化学系(陈广汶)，淮北煤师院化学系(王亚林) |
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| 摘 要： | 本文研究了在pH11.O的硼砂—氢氧化钠介质中,痕量钴(Ⅱ)催化过氧化氢氧化桑色素褪色的指示反应,建立了催化光度法测定痕量钴的新方法,方法的线性范围为0～0.05μg/ml,检出限为7.5×10~(-11)g/ml,用于维生素B_(12)中钴的测定,结果满意。
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| 关 键 词： | 催化光度法 钴 桑色素 |
Catalytic Spectrophotometric Determination of Trace Cobalt-System of CobaIt(II)-Morin-Hydrogen Peroxide |
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| Chen Guangwen Wang Yaling. Catalytic Spectrophotometric Determination of Trace Cobalt-System of CobaIt(II)-Morin-Hydrogen Peroxide[J]. Journal of Huaibei Coal Industry Teachers College(Natural Science edition), 1995, 0(3) |
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| Authors: | Chen Guangwen Wang Yaling |
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| Affiliation: | Department of Chemistry |
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| Abstract: | A new catalytic spectrophotometric method for the determination of trace Cobolt has been studied. The method is based on the catalytic effect of Cobalt( II )on the oxidation of morin by hydrogen peroxide in the Na 2B4O7-NaOHCPH=l 1.0 medium. The Linear range is 0 - 0.05 M g/ml. The detection limit of Cobalt( n )is 7.5 x 10-11g/ml..The method has been applied to the determination of Cobalt in vitamin B12 with satisfactory result. |
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| Keywords: | catalytic spectrophotometric cobalt morin. |
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