| Thermo4460金属分析仪光源故障分析与排除 |
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| 引用本文： | 罗文.Thermo4460金属分析仪光源故障分析与排除[J].现代仪器,2007,13(5):61-62. |
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| 作者姓名： | 罗文 |
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| 作者单位： | 安徽马鞍山钢铁股份有限公司技术中心,马鞍山市,243000 |
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| 摘 要： | 本文简单介绍Thermo公司4460金属分析仪光源的工作特点,详细介绍一些典型故障的处理过程,总结维修的思路和方法。
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| 关 键 词： | 金属分析仪 CCS光源 故障检修 |
Determination of Mn(Ⅱ) in aluminium alloy with microemulsion-5-Br-PADAP by spectrophotometry |
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| Abstract: | Mn(Ⅱ) in aluminium alloy was determined directly with the colorination system of 2-(5-Br-2-pyridylazo)-5-dethylaminophenol(5-Br-PADAP) and o/w microemulsion contained 85%water by spectrophotometry in this paper.the absorption of this complex compoundreaches maximunvalue and the absorption pcak is at 568nm.results show that Beer's law is obeyed when the Mn(Ⅱ) amount is 0~8μg /10mL,and the apparent molarabsorption coefficient is 1.178×105 L·mol-1·cm-1.The interference of Ni2+、Cu2+、 Ti2+、Cd2+、Zn2+ ions was eliminated by dimethylglyoxime、 sodium fluoride and citric acid,.Mn(Ⅱ) content in Fushun Aluminiumworks'Pu Aluminium、LD31were determined by the method,whose RSD is 0.92%、1.5%.the average recovery rate is 97.86% and 97.74%.the method has many advantages such as high sensitivity、high selectivity. |
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| Keywords: | 5-Br-PADAP Microemulsion Spectrophotometry Aluminium alloy Mn |
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