"I want to determine the concentration of a series of sugar solutions. I tried to use refractometry, but the concentration is very low and the difference between the refractive index (RI) values is not appreciable. If anyone knows of any methods or have any suggestions, please do share."
Measuring the Concentration of Sugar With Polarized Light
https://van.physics.illinois.edu/ask/listing/42894#:~:text=To%20calculate%20the%20concentration%20of%20sugar%2C%20you%20can,%C3%97%20thickness%20of%20the%20sugar%20solution%20in%20centimeters%2F10%29
Article Effect of Sugar Concentration and Type on the Angle of Rotat...
Nikolay Pavlov , thank you for your answer, but as I mentioned earlier the concentration is relatively too low, which can not be determined by polarimetry. I am trying to get method which will detect small quantity of sugar.
You can look at iodimetry to see if the method may work with low sugar concentrations https://www.sciencedirect.com/science/article/pii/S0021925818857283/pdf
Lars Benesch , I haven't tried it, I will definitely try to use it if other methods doesn't work.
Lars Benesch , My apologies, I've had a lot on my plate recently and haven't had the time to try it yet. I'll let you know as soon as I do.
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