What is Refractometry?
Refractometry is defined as determination of refractive index of a substance with a refractometer. Light propagates with differing speed in different media. Refractive index, or index of refraction, of a medium is defined as the ratio of the phase velocity of light in vacuum to the phase velocity in the medium itself. An index of refraction of 2 means that the light travels at half the speed of light in a vacuum.
Refractive index is an important parameter in qualitative analysis (e.g. identification of edible oils) and may be used in quantitative analysis (e.g. determination of concentrations) as well. Furthermore determination of material composition and degree of polymerisation can be performed very cost efficient.
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The new automatic refractometer DR6000 series with integrated Peltier thermostat for excellent temperature control enables short measuring times at maximum accuracy. The self-explanatory touch screen and user-friendly USB and RS232 interfaces meet every expectation. The DR6000 series comprises four standard models variable according to range, resolution and accuracy.
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The digital Abbe-Refractometer AR2008 is a sturdy device which posseses an electronic data evaluation and an optional temperature-compensation feature.
On an LCD display you are able to read-off the Brix value and temperature coevally. By a standard interface the data can directly be transferred to a pc or printer. In delivery included is a glass calibration plate, contact fluid and a screwdriver.
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The optical design of these refractometers allows accurate measurement of the refractive index with a very thin layer between the prisms. Abbe refractometers manufactured by A. KRÜSS Optronic possess temperature compensation, the ability to temper the prism and a digital thermometer. Partly with digital display and RS232 interface.
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Process refracomerters are used for continuous in-line measurements due to direct insertion into pipes or boilers. Ideal for quality control in the food, beverage, pulp and paper, suger and chemical industries. Sensor head and control unit can be connected directly to an SPS control system.
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Precision instruments for determining the solid contents dissolved in liquids, such as sugar, salt, serum protein in blood and starch. Dissolved solids can be determined in seconds. The hand-held refractometers fit in every pocket! Delivered in a handy storage case with conversion tables.
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For the determination of the refractive index, quality control and categorization of gemstones. The A.KRÜSS Optronic table refractometer gives exceptionally crisp, sharp readings and a large field of view. Supplied with polarizing filter and eyepiece magnifier.
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