| 新铜试剂—曙红Y萃取光度法测定微量铜 |
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| 引用本文： | 严隽粹,贝自英,祝明.新铜试剂—曙红Y萃取光度法测定微量铜[J].分析测试学报,1990(3). |
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| 作者姓名： | 严隽粹 贝自英 祝明 |
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| 作者单位： | 南京中医学院
(严隽粹，贝自英)，南京中医学院(祝明) |
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| 摘 要： | 铜(I)-新铜试剂(NCP)-曙红Y(Eosin Y)能形成离子对三元络合物,其络合比为1:2:1。在氯仿中该络合物的λ_(max)=544nm,表观摩尔吸光系数ε=6.83×10~4 L mol~(-1)cm~(-1)。以柠檬酸盐作掩蔽剂,控制水相pH=4.5,相比(水相/氯仿)=2/1,可将络合物定量萃入氯仿中。一般常见的共存离子均不干扰测定,显色稳定性好,线性范围为0～5μg cu/5ml氯仿。方法灵救度高,选择性好。
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| 关 键 词： | 萃取光度法 新铜试剂-曙红Y |
Determination of Trace Copper with Neo-Cuproin and Eosin Y by Extraction-Spectrophotometry |
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| Yan Juancui,Bei Ziying,Zhu Ming Nanjing College of Traditional Chinese Medicine.Determination of Trace Copper with Neo-Cuproin and Eosin Y by Extraction-Spectrophotometry[J].Journal of Instrumental Analysis,1990(3). |
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| Authors: | Yan Juancui Bei Ziying Zhu Ming Nanjing College of Traditional Chinese Medicine |
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| Institution: | Yan Juancui;Bei Ziying;Zhu Ming Nanjing College of Traditional Chinese Medicine |
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| Abstract: | |
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| Keywords: | Extraction-Spectrophotometry neo-cuproin and eosin y |
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