利用紫外-可见光谱研究石油卟啉在光和酸碱介质中结构的变化  

Study of Variation of Free Petroporphyrin Structure in Acid ,Alkali and Under Light by UVVIS Spectrometer

作　　者：陈培榕[1] 邢志[1] 王志杰[1] 廖志勤[2] 黄第藩[2] 

机构地区：[1]清华大学化学系 [2]北京石油勘探开发设计院地质所

出　　处：《分析试验室》1998年第3期24-26,共3页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金

摘　　要：利用游离卟啉ＵＶ－ＶＩＳ特征光谱（３９８ｎｍ，４９６ｎｍ，５２８ｎｍ，５６４ｎｍ，６１６ｎｍ）研究石油游离卟啉在酸、碱介质中和光照条件下结构的变化。在酸、碱介质中，尤其是在酸性介质中，游离卟啉的结构特征发生了变化。实验证明，这种变化是可逆的，经中和后，又恢复了原有特征。在光照条件下，游离卟啉的ＵＶ－ＶＩＳ特征吸收完全消失，结构发生了不可逆的变化。Variation of free petroporphyrin structure in acid or alkali solution and under light was studied by means of characteristic UVVIS spectrum.The obvious changes of structure took place when petroporphyrin was in acid or alkali medium.The experiments have proved that the changes were reversible.However,the UVVIS characteristic spectrum of petroporphyrin showed that it underwent irreversible change under light.It was proved that the structure has been destroyed.

关 键 词：UV-VIS 卟啉 石油卟啉 游离卟啉 结构 

分 类 号：TE622.12[石油与天然气工程—油气加工工程]