| 甲基绿为内标分光光度法测定铝合金中的铁 |
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| 引用本文： | 关虹,谭日厚.甲基绿为内标分光光度法测定铝合金中的铁[J].太原理工大学学报,1990(2). |
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| 作者姓名： | 关虹 谭日厚 |
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| 作者单位： | 太原工业大学应用化学系，太原工业大学工业分析专业 88届毕业生 大同市自来水公司 |
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| 摘 要： | 在样品及标准系列中均加入一定量的甲基绿作为内标,分别于510nm和630nm处测量吸光度。比值A_(510)/A_(630)与样品中的铁含量呈良好的线性关系。该比值与样品体积的变化无关,测定时不必准确稀释,可根据样品浓度的大小任意稀释体积.本法测定的准确度和精密度良好,应用于铝合金中铁的测定获得较满意的结果。
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| 关 键 词： | 內标 分光光度法 铝合金 铁 |
Methyl Green as Internal Standard in the Spectrophotometric Determination of Iron in Alloy of Aluminium With 1, 10-Phenanthrdline |
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| Guan Hong Tan Rihou.Methyl Green as Internal Standard in the Spectrophotometric Determination of Iron in Alloy of Aluminium With 1, 10-Phenanthrdline[J].Journal of Taiyuan University of Technology,1990(2). |
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| Authors: | Guan Hong Tan Rihou |
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| Institution: | Guan Hong Tan Rihou |
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| Abstract: | A definite amount of such an internal standard is added to each sample and calibration standard. The absorbance at 510nm and 630nm are measured at the same time. The ratio of the absorbance at 510nm to that at 630nm is proportional to the concetration of ore and the ratio is not affected by the variation of voluwe.With this method accurate dilution is not necessary. The solution can be diluted to the need of sample concentration. Both the accuracy and precision are good. The method is satisfactory for analysing iron in alloy of aluminium. |
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| Keywords: | internal standard spectrophotmetric iron alloy of aluminium |
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