What is refractometry method?
What is refractometry method?
Refractive Index Measurement or Refractometry is the method of measuring substances refractive index and assess their composition or purity. Refractometry is a technique that measures how light is refracted when it passes through a given substance.
Which type of method is refractometry?
Refractometry is the analytical method of measuring substances’ refractive index (one of their fundamental physical properties) in order to, for example, assess their composition or purity. A refractometer is the instrument used to measure refractive index (“RI”).
How Abbe refractometer works explain?
The measuring principle of an Abbe refractometer is based on the principle of total reflection. Abbe refractometers are used for measuring liquids. The reference media glasses (prisms) can be selected with high refractive indices. The light from a radiation source is reflected by a mirror and hits a double prism.
What is refractometer Slideshare?
• The Refractive index of the second medium with respect to first is given by. • The R.I is defined as ratio of velocity of light in vacuum & air to that in medium. INSTRUMENTATION • Abbe’s refractometer • It uses for measurement of an Index of refraction of liquid & Solid sample.
What are the applications of refractometry?
Refractometers are used in a variety of applications: From the determination of the purity and concentration of ingredients of medications to the measurement of the sugar content of food and beverages and the analysis of petroleum oil.
What is the unit of refractometer?
Its units are typically g/dl (g/100ml). These units may also be printed on the lid of the refractometer case (figure 3). The central scale is the refractive index scale (nD or ND). It can be used with appropriate conversion charts to measure the concentration of many other solutions.
What are the components of Abbe refractometer?
The main components of the Abbe refractometer are the prism body, the focusing telescope, and the graduated glass circle with reading microscope. The prism body is supplied as standard design and as flow prism body.
What are the application of refractometry?
Refractometers are used in a variety of applications: From the determination of the purity and concentration of ingredients of medications to the measurement of the sugar content of food and beverages and the analysis of petroleum oil. The dilution of sunflower oil with cheap oils can also be detected with this device.
What are the most common uses for the refractometer?
In laboratory medicine, a refractometer is used to measure the total plasma protein in a blood sample and urine specific gravity in a urine sample. In drug diagnostics, a refractometer is used to measure the specific gravity of human urine.