Journal of Applied Optics, Volume. 46, Issue 4, 852(2025)
Novel method to measure solution concentration based on light attenuation
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 0.000 1 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.
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Yiyue TANG, Xinxin CHEN, Xiurong LI, Qinghong ZHANG, Long CHEN. Novel method to measure solution concentration based on light attenuation[J]. Journal of Applied Optics, 2025, 46(4): 852
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Received: May. 23, 2024
Accepted: --
Published Online: Sep. 16, 2025
The Author Email: Long CHEN (陈龙)