A polarimeter measures the angle of rotation of polarisation plane when linear polarized light goes through an optically active substance. The rotation angle of the polarization plane of linear polarized light is different for each optical active substance as described in the Law of Biot
Polarimetry is a non-destructive test method for measuring optical activity of organic and inorganic substances. It is very useful to analyze expensive non-reproducible samples. Polarimeters are extensively used for quality and process control in research laboratories in the chemical and food industry
| MODELS | Scales | Accuracy | Observation tubes 100 and 200 mm | 230 V sodium lamp (with 589.3 nm filter) | 230 V High power LED (with 589.3 nm filter) | ||
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E99‑400 | ± 180° | ± 0.1° polar scale | • | • |  | |
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E99‑400‑LED | ± 180° | ± 0.1° polar scale | • | • |  |
POLARIMETER
The purity and concentration of optically active substances can be determined with a polarimeter. An optically active substance will rotate the polarization plane of of linear polarized light. The amount of rotation is depending on the molecular composition and proportional to the concentration of chiral molecules. Each optically active substance has his specific rotation factor as defined by Biot’s law
• The polarimeter is a sensitive instrument for non-destructive measurement of the optical activity of organic and inorganic substances
• It is also a simple and cheap method for expensive or non-replicable samples
APPLICATIONS
• Polarimeters are frequently used for process control of chemical, pharmaceutical and food research labs of production facilities
• Some substances that can be measured are: steroids, diuretics, antibiotics, drugs, vitamin, analgesics, amino acids, essential oils, sugars
TUBES
The polarimeters are suitable for 100 and 200 mm observation tubes
ROTATION ANGLE
• Polar scale, range ± 180° with 0.1° readings
• Supplied with observation tubes of 100 mm and 200 mm
• Bright light measuring field permits reading with accuracy of 0.1° with aid of Vernier
• Range 0-180° to left and right . Accuracy 0.1°. Polarizing device: Glan Thomson prism and Laurent Quartz plate
PACKAGE CONTENT
Supplied with one 100 and 200 mm observation tube. With build in 230V powersupply
E99-197
E99-410
E99-415
E99-430
E99-431
