| 钼（VI）-溴酸钾-萘酚绿B体系动力学光度法测定痕量钼 |
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| 引用本文： | 朱化雨,朱敏,闫丽.钼（VI）-溴酸钾-萘酚绿B体系动力学光度法测定痕量钼[J].临沂师范学院学报,2009,31(6):65-67. |
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| 作者姓名： | 朱化雨 朱敏 闫丽 |
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| 作者单位： | 1. 临沂师范学院化学与资源环境学院,山东临沂,276005
2. 临沂市第十五中学,山东临沂,276000 |
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| 摘 要： | 在氨水介质中以氨三乙酸为活化剂，KBrO3氧化萘酚绿B的反应受Mo（VI）的催化而加速，据此建立了催化光度法测量痕量钼的新方法；选择了影响反应速率的最佳条件，测定了反应的表观活化能；方法的检出限为1．6×10^-9g/mL，线性范围为O～0．24μg/mL．用于水和食品中痕量钼的测定，获得满意结果．
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| 关 键 词： | 动力学光度法 钼 萘酚绿B 溴酸钾 |
Kinetic-Spectrophotometric Determination of Trace Molybdenum with the Naphthol Green B-Mo(VI)-KBrO3 System |
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| ZHU Hua-yu,ZHU Min,YAN Li.Kinetic-Spectrophotometric Determination of Trace Molybdenum with the Naphthol Green B-Mo(VI)-KBrO3 System[J].Journal of Linyi Teachers' College,2009,31(6):65-67. |
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| Authors: | ZHU Hua-yu ZHU Min YAN Li |
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| Institution: | ( School of Chemistry and Resource Environment, Linyi Normal University, Linyi Shandong 276005, China; 2. Linyi No. 15 Middle School, Linyi Shandong 276000, China) |
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| Abstract: | A Kinetic-spectrophotometric method for the determination of trace molybdenum was studied. The method is based on the molybdenum （VI） catalyzing the oxidation of Naphthol green B by potassium bromate in the medium of ammonia and using nitrilotriacetic acid as activator. The optimal reaction conditions and the apparent activation energy were determined. The detection limit was 1.6×10^-9g/ml and the linear range of method was 0-0.24μg/ml. This method has been used to determine trace Mo （VI） in water and human serum with satisfactory results. |
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| Keywords: | kinetic spectrophotometry molybdenum naphthol green B potassium bromate |
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