| Na2SO3溶液的拉曼光谱研究和保存 |
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| 引用本文： | 陈娟,李和平,高荣,王燕. Na2SO3溶液的拉曼光谱研究和保存[J]. 光散射学报, 2011, 23(2): 146-153 |
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| 作者姓名： | 陈娟 李和平 高荣 王燕 |
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| 作者单位： | 1. 中国科学院地球化学研究所,贵阳550002;中国科学院研究生院,北京100049
2. 中国科学院地球化学研究所,贵阳,550002 |
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| 基金项目： | 中国科学院大型设备研制项目 |
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| 摘 要： | 使用抗坏血酸(VC)代替甲醛作为保护剂,通过拉曼光谱仪测试SO32-、SO42-的拉曼峰的转变过程来观察Na2 SO3溶液变质情况,测试简单,快速.实验表明,Na2 SO3溶于煮沸冷却后的蒸馏水,以VC作为保护剂,当浓度为0.5 mol/L时,可以持续暴露在空气中保存12h以内不变质;当通入N2或煮沸冷却后的蒸馏水或添...
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| 关 键 词： | Na2SO3 拉曼 变质 保存 |
| 收稿时间： | 2011-03-08 |
Raman Spectroscopy Study and Preservation of Na2SO3 Solution |
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| CHEN Juan,LI He-ping,GAO Rong,WANG Yan. Raman Spectroscopy Study and Preservation of Na2SO3 Solution[J]. Chinese Journal of Light Scattering, 2011, 23(2): 146-153 |
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| Authors: | CHEN Juan LI He-ping GAO Rong WANG Yan |
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| Affiliation: | 1,2(1.Institute of geochemistry,Chinese academy of sciences,Guiyang 550002,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Adding VC(ascorbic acid/vitamin C) as a protective agent instead of formaldehyde,we have used Laser Raman spectroscopy to experiment on the Raman shift transformation from SO2-3 to SO2-4and then to observe the chemometamorphism of Na2SO3 solution,which is a simple and fast method.The result showed that: provided that continuous exposure to the air,prepared 0.5mol/L Na2SO3(aq) use distilled water with boiling and cooling,whereafter adding VC as a protective agent,which can preserve not less than 12h against transformation;provided that acquirement from volumetric flask discontinuously,prepared 0.5mol/L Na2SO3(aq) separately use distilled water with N2 、with boiling and cooling、with adding 5%VC 5mL,all of which can preserve from 1 day to 3/4/5 days against transformation. |
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| Keywords: | Na2SO3 Raman chemometamorphism preservation |
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