| L-半胱氨酸与L-胱氨酸间相互转化的拉曼光谱研究 |
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| 引用本文： | 黄燕飞,廖海星,唐和清. L-半胱氨酸与L-胱氨酸间相互转化的拉曼光谱研究[J]. 应用化工, 2014, 0(10): 1762-1766 |
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| 作者姓名： | 黄燕飞 廖海星 唐和清 |
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| 作者单位： | 1. 中南民族大学 化学与材料科学学院,湖北 武汉,430074
2. 长江大学 化学与环境工程学院,湖北 荆州,434020 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 以石墨烯/纳米银为基底,采用拉曼光谱方法,研究了L-半胱氨酸与L-胱氨酸间的相互转化。随着体系pH值的变化,2 550 cm-1处S─H键的伸缩振动峰以及500 cm-1处S─S键的伸缩振动峰发生了明显变化,可以清楚地观察到L-半胱氨酸与L-胱氨酸间的相互转化,而延长激光曝光时间并没有观察到此变化。这表明溶液pH值是影响S─H键与S─S键间相互转化的主导因素。
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| 关 键 词： | 转化 L-半胱氨酸 L-胱氨酸 拉曼光谱 |
A Raman study on mutual transformation between L=cysteine and L=cystine |
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| HUANG Yan-fei,LIAO Hai-xing,TANG He-qing. A Raman study on mutual transformation between L=cysteine and L=cystine[J]. Applied chemical industry, 2014, 0(10): 1762-1766 |
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| Authors: | HUANG Yan-fei LIAO Hai-xing TANG He-qing |
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| Affiliation: | HUANG Yan-fei;LIAO Hai-xing;TANG He-qing;College of Chemistry and Materials Science,South-Central University for Nationalities;College of Chemistry and Environmental Engineering,Yangtze University; |
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| Abstract: | The mutual transformation between L-eysteine and L-eystine at different solution pH values was studied by Raman seattering teehnique using a GO/Ag NPs as a substrate. Signifieant ehanges of the peak at about 2550 cm^-1 and 500 cm^-1 in the Raman speetra were assigned to the S─H and S─S bond vi-bration,respeetively. It was observed the ehange in the solution pH signifieantly influeneed the intensities of the two bands,whieh showed elearly the mutual transformation between L-eysteine and L-eystine. No sueh variations were observed by extending the exposure time. This eonfirmed that solution pH value was the primary influeneing faetor for the mutual transformation between L-eysteine and L-eystine. |
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| Keywords: | transformation L-eysteine L-eystine Raman |
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