可拆卸式拉曼光谱仪光路调节方法的改进及应用  

Improvement of optical path adjustment method and application of detachable Raman spectrometer

作　　者：伍明[1,3] 沈佳宇 覃致浪 吴玉萍 黄正喜[2,3] WU Ming;SHEN Jiayu;QIN Zhilang;WU Yuping;HUANG Zhengxi(Experimental teaching and Engineering Training Center,South-central Minzu University,Wuhan 430074,China;School of Chemistry and Materials Science,South-central Minzu University,Wuhan 430074,China;National Demonstration Center for Experimental Ethnopharmacology Education,South-central Minzu University,Wuhan 430074,China)

机构地区：[1]中南民族大学实验教学与工程训练中心,湖北武汉430074 [2]中南民族大学化学与材料科学学院,湖北武汉430074 [3]中南民族大学民族药学国家级实验教学示范中心,湖北武汉430074

出　　处：《实验技术与管理》2023年第3期226-230,236,共6页Experimental Technology and Management

基　　金：中南民族大学教学研究项目(JYX19084)。

摘　　要：光路调节是拉曼光谱教学实验中的重难点,用激发光绿光作为光路指示较为刺眼,强度不宜太高,而经过多次反射、透射后,光强会变弱,导致光路调节难以进行。经研究发现,在光路调节中以罗丹明B(RhB)水溶液的荧光信号为参照,使光路可见,更容易找到一级衍射光,信号清晰明显,可以帮助学生更快地掌握光路调试技巧。光路调节节省下来的时间可用于进行更多的应用尝试,如进行消毒洗手液检测,用以提高学生的实验兴趣。Adjusting of the light path is a major difficulty in the Raman spectroscopy teaching experiment.As the light path indicator,green light is harsh,and its intensity should not be too high and will become weaker after several times of reflection and transmission.It was found that fluorescence signal of Rhodamine B(RhB)aqueous solution used as reference in the light path adjustment can make the light path visible and easier to find the first order diffraction light with clear and obvious signal,which can help students master the light path adjustment skills faster.The time saved by the improved light path adjustment method can be used for more application attempts,such as detection of different hand sanitizers,to improve students'interest in experiment.

关 键 词：拉曼光谱仪 罗丹明B 光路调节 乙醇 洗手液 

分 类 号：O6-3[理学—化学]