| 1,10-二氮杂菲分光光度测定钛合金中铁方法的改进 |
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| 引用本文： | 向伦强,张瑾洁.1,10-二氮杂菲分光光度测定钛合金中铁方法的改进[J].冶金分析,2005,25(2):1-1. |
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| 作者姓名： | 向伦强 张瑾洁 |
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| 作者单位： | 遵义钛业有限责任公司质量部,贵州,遵义,563004 |
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| 摘 要： | 试样采用氢氟酸溶解,饱和硼酸络合,乙酸-乙酸铵作缓冲溶液控制酸度,三元有机铵盐作混合掩蔽剂,1,10-二氮杂菲分光光度法测定钛合金中铁。成功克服了传统分析方法中因受钒(4mg以上)干扰,显色液需放置隔夜后才能测定的缺陷,大大缩短分析时间,获得较满意的结果。该方法准确度高,分析结果重现性较好。
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| 关 键 词： | 氢氟酸 混合掩蔽剂 钛合金 铁 |
| 文章编号： | 1000-7571(2005)02-0072-03 |
Improvement on method for spectrophotometric determination of iron in titanium alloy with 1, 10-phenanthroline |
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| XIANG Lun-qiang,ZHANG Jin-jie.Improvement on method for spectrophotometric determination of iron in titanium alloy with 1, 10-phenanthroline[J].Metallurgical Analysis,2005,25(2):1-1. |
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| Authors: | XIANG Lun-qiang ZHANG Jin-jie |
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| Abstract: | The sample is dissolved quickly with hydrofluoric acid and complexed with saturated boric acid. pH of the solution is controlled by the buffer solutions of acetic acid-ammonium acetate and trinal organic ammonium salt is used as masking agents to determine iron in titanium alloy by spectrophotometry with 1,10-phenanthroline.The method is successful to overcome the fault in that the solution requires to set to next day for the determination, owing to the interference of vanadium(>4 mg). The determination time is greatly shorted and a satisfactory result is achieved in the method. |
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| Keywords: | hydrofluoric acid mixed masking agent 1 10-phenanthroline spectrophotometry titanium alloy iron |
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