摘要
研发了一种基于光衰减原理的溶液浓度测量方法,通过测量激光在样品溶液中的透射光强,根据比尔定律计算吸收系数,实现了对低浓度溶液的可靠测量。在532nm波长下,该方法对0.0001mol·L-1的硫酸铜溶液浓度测量结果显示,系统误差控制在10%以内,同时测得的硫酸铜水溶液吸收系数与其他文献报道的一致。结果表明,该方法具有较高的准确性和可靠性,可满足相关领域的低浓度溶液测量需求。
A novel method for measuring the concentration of pure solutions based on the principle of light attenuation was developed.By measuring the transmitted light intensity of laser in sample solution and calculating the absorption coefficient according to Beer's law,the reliable measurement of low concentration solution was realized.At 532 nm wavelength,the concentration of a 0.0001 mol·L-1 copper sulfate solution measured by this method shows that the systematic error is controlled within 10%,and the absorption coefficient of copper sulfate solution measured is consistent with that reported in other literatures.The results show that this method has high accuracy and reliability,and can meet the requirements of low concentration solution measurement in related fields.
作者
唐乙月
陈欣欣
李秀荣
张清泓
陈龙
TANG Yiyue;CHEN Xinxin;LI Xiurong;ZHANG Qinghong;CHEN Long(School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 611756,China;Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)
出处
《应用光学》
北大核心
2025年第4期852-858,共7页
Journal of Applied Optics
基金
国家自然科学基金(12173039,12105233)。
关键词
浓度测量
吸收系数
硫酸铜
光衰减法
concentration measurement
absorption coefficient
cupric sulfate
optical attenuation method
