摘要
对溶液旋光度测量装置进行改进,利用宽光谱光源和光谱仪替代单色光和灵敏电流计,实现了可见光范围内的旋光度测量;利用四步移相法替代寻找消光位置的方法,消除了探测器背景噪声对测量的影响.对钠黄光波长下果糖溶液的旋光度进行测量,精度从0.1°提升至0.08°.
The optical rotation measurement in the visible light range was realized by using a wide-spectrum light source and spectrometer instead of monochromatic light and galvanometer,and the influence of the background noise of the detector on the measurement was eliminated by using the four-step phase shifting method instead of the method of finding the extinction position.The optical rotation of the fructose solution was measured at the wavelength of the sodium yellow light,and the precision was improved by 0.1°to 0.08°.
作者
徐康怡
王军
袁梦
吴抒阳
韩志刚
XU Kang-yi;WANG Jun;YUAN Meng;WU Shu-yang;HAN Zhi-Gang(School of Physical Science and Technology,Suzhou University of Science and Technology,Suzhou 215009,China;School of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《物理实验》
2022年第5期53-56,共4页
Physics Experimentation
基金
江苏省大学生创新创业训练计划项目(No.202110332063Y)
苏州科技大学一流课程建设项目(No.2020KCHH-12)
江苏省高等学校自然科学研究重大项目(No.18KJA470004)
江苏省高等教育教学改革研究课题(No.2021JSJG370)。
关键词
偏振
旋光度
光谱仪
移相法
polarize
optical rotation
spectrometer
phase shifting method
