Version 1
: Received: 21 April 2024 / Approved: 22 April 2024 / Online: 23 April 2024 (11:22:45 CEST)
How to cite:
Svirskis, S.; Kozlovs, V.; Merkulovs, D. Proposal of a New Differential High-Sensitivity Refractometer for Simultaneous Measurement of Two Refractive Indices and Their Differences. Preprints2024, 2024041466. https://doi.org/10.20944/preprints202404.1466.v1
Svirskis, S.; Kozlovs, V.; Merkulovs, D. Proposal of a New Differential High-Sensitivity Refractometer for Simultaneous Measurement of Two Refractive Indices and Their Differences. Preprints 2024, 2024041466. https://doi.org/10.20944/preprints202404.1466.v1
Svirskis, S.; Kozlovs, V.; Merkulovs, D. Proposal of a New Differential High-Sensitivity Refractometer for Simultaneous Measurement of Two Refractive Indices and Their Differences. Preprints2024, 2024041466. https://doi.org/10.20944/preprints202404.1466.v1
APA Style
Svirskis, S., Kozlovs, V., & Merkulovs, D. (2024). Proposal of a New Differential High-Sensitivity Refractometer for Simultaneous Measurement of Two Refractive Indices and Their Differences. Preprints. https://doi.org/10.20944/preprints202404.1466.v1
Chicago/Turabian Style
Svirskis, S., Vladimirs Kozlovs and Dmitrijs Merkulovs. 2024 "Proposal of a New Differential High-Sensitivity Refractometer for Simultaneous Measurement of Two Refractive Indices and Their Differences" Preprints. https://doi.org/10.20944/preprints202404.1466.v1
Abstract
The refractive index of a liquid serves as a fundamental parameter reflecting its composition, thereby enabling the determination of component concentrations in various fields such as chemical research, food industry, and environmental monitoring. Traditional methods for refractive index (RI) measurement rely on light deflection angles at interfaces between the liquid and a material of known refractive index. In this paper, the authors present a new differential refractometer for highly sensitive measurement of RI differences between two liquid samples. Using a configuration with two cells equipped with flat parallel plates as measuring elements, the instrument facilitates accurate analysis. Namely, the sensor signals from both the solution and the solvent cuvette are generated simultaneously with one laser pulse, reducing the possible fluctuations of the laser radiation intensity. Our evaluation shows the high sensitivity of RI measurements (< 7 · 106), so this differential refractometer can be proposed not only as a high-sensitivity sensing tool that can be used for mobile detection of nanoparticles in solution samples, but also to determine the level of environmental nano-pollution using water (including rain, snow) samples from various natural as well as industrial sources, thus helping to solve some important environmental problems.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
