| Fe3+-SCN-体系中有色物质吸光度和显色剂浓度关系的研究 |
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| 引用本文： | 马永梅,胡涛.Fe3+-SCN-体系中有色物质吸光度和显色剂浓度关系的研究[J].广州化工,2007,35(5):41-42. |
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| 作者姓名： | 马永梅 胡涛 |
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| 作者单位： | 淮阴工学院生化学院化工系,江苏,淮安,223003;淮阴工学院生化学院化工系,江苏,淮安,223003 |
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| 摘 要： | 针对许多《分析化学》和《无机及分析化学》教材在吸光光度法一章的显色剂用量的讨论,对Fe3 —SCN-离子体系进行了研究。实验结果表明:在Fe3 离子浓度及其它条件固定,显色剂SCN-离子浓度较低时,随着SCN-离子浓度增大,Fe(SCN)6]3-离子的吸光度不断增大;显色剂SCN-离子浓度较高时,随着SCN-离子浓度增大,放置稍长时间后,Fe(SCN)6]3-离子的吸光度降低。
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| 关 键 词： | 铁 硫氰酸根 吸光度 显色剂 |
Study on the Relationship between Absorbance of the Colored Substance and Color Reagent Concentration in Fe3+-SCN- |
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| MA Yong-mei,HU Tao.Study on the Relationship between Absorbance of the Colored Substance and Color Reagent Concentration in Fe3+-SCN-[J].GuangZhou Chemical Industry and Technology,2007,35(5):41-42. |
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| Authors: | MA Yong-mei HU Tao |
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| Abstract: | Based on the discussion about color reagent dosage of spectrophotometry in many analytical textbooks and inorganic and analytical chemistry textbooks, Fe3 -SCN- system was studied. The experimental results showed that when Fe3 concentration and other conditions were fixed and SCN- color reagent concentration was lower, Fe(SCN)6]3- absorbance increased with the SCN- concentration increased. With the SCN- concentration amplified, Fe(SCN)6]3- absorbance decreased after longish time when SCN- color reagent concentration was higher. |
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| Keywords: | iron thiocyanate ion absorbance color reagent |
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