A refractometer takes the refraction angles and correlates them to refractive index nD values that have been established. Using these values, you can determine the concentrations of solutions.
For example, solutions have different refractive indexes depending on their concentration. The prism in the refractometer has a greater refractive index than the solution. Measurements are read at the point where the prism and solution meet. With a low concentration solution, the refractive index of the prism is much greater than that of the sample, creating a large refraction angle and a low reading. The reverse would happen with a high concentration solution.
Learn more about the new Cole-Parmer digital refractometers. The soluble solids content is the total of all the solids dissolved in the water, beginning with sugar, salts, protein, acids, etc.
The Brix scale is calibrated to the number of grams of cane sugar contained in g of water. Need to know more about refractometers? Read the entire article on refractometers. Thank you for your inquiry. Your question was forwarded to our technical product experts.
You can also call for immediate assistance. Thank you for your question. We will have someone from our applications department contact you. If you need an immediate answer, please call For application of large decal onto painted plastic we use a soap and water solution. This solution is measured out according to the established recipe.
I would like to know if a refractometer can be used to verify the correct percentage of this solution is maintained in bulk container. Also could you tell me what would be the range for a soap and water solution.
Thank You…. Hi Oscar: Thank you for your question. I forwarded your information to our application specialists. Someone will be in contact with you. In the meantime, if you need immediate assistance, please call Does a conversion chart exists that converts refractive index to moisture?
Can you recommend a refractometer for this application? Digital refractometers produce their own beam of light from an LED, instead of using daylight or another outside source of light. Once the liquid is placed inside the receptacle, the light is beamed through the sample and the computer assigns the resulting refraction a numeric value based on the Brix scale.
The final value is then displayed on a digital screen. Taylor Echolls is an award-winning writer whose expertise includes health, environmental and LGBT journalism. He has written for the "Valley Citizen" newspaper, where his work won first- and second-place awards in sports and outdoor features from the Idaho Press Club.
Echolls holds a B. Related Articles Purpose of a Refractometer. How to Read a Refractometer. How to Calibrate a Refractometer. Science Projects With a Prism. How to Convert Degrees Brix to Sugar. With a low concentration solution, the refractive index of the prism is much greater than that of the sample, creating a large refraction angle and a low reading "A" on diagram.
The reverse would happen with a high concentration solution "B" on diagram. The Brix scale is calibrated to the number of grams of cane sugar contained in mL of water. Language English German. Sign In. New Customer?
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