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Equipment
Index Instruments PolAAr 32 Polarimeter
Measurement temperature (thermostated cell)
20 °C ± 0.1 °C
Rotation angle measurement accuracy
±0.001°
from -89° to +89°
Measured optical rotation range
Wavelength used in analysis
589 nm (Na-D)
The Chemical Laboratory of the Saint Petersburg Technopark provides polarimetry services — an analytical method for determining the optical activity of substances. The method is based on measuring the angle of rotation of the plane of polarized light as it passes through a solution of a chiral compound.
Polarimetry is used in pharmaceuticals, organic synthesis, the food industry, and biochemistry for purity assessment, substance identification, method validation, and quantitative analysis of optically active mixtures.
Analysis is conducted in a temperature-controlled cell with automatic calibration, ensuring high precision and reproducibility of results. Upon completion of the study, the client is provided with a protocol containing measurements, specific rotation calculation, and interpretation based on regulatory data (SP, USP, GOST, etc.).
Polarimetry is used in pharmaceuticals, organic synthesis, the food industry, and biochemistry for purity assessment, substance identification, method validation, and quantitative analysis of optically active mixtures.
Analysis is conducted in a temperature-controlled cell with automatic calibration, ensuring high precision and reproducibility of results. Upon completion of the study, the client is provided with a protocol containing measurements, specific rotation calculation, and interpretation based on regulatory data (SP, USP, GOST, etc.).
Applications
Quality control of pharmaceutical substances and reagents
Identification of chiral compounds
Determination of specific rotation and substance purity
Confirmation of stability and regulatory compliance
Work stages
Selection of solvent and concentration, preparation according to methodological requirements.
Recording the angle of optical rotation at a specified wavelength and temperature.
Based on substance mass, cell length, and solution density.
Document with measurement results, calculations, comparison with standards, and conclusions.
Advantages
High precision and reproducibility
Suitable for chiral and biologically active compounds
Non-destructive analysis of the substance
Compliance with international analytical standards
Cost
Service name
Cost
For St. Petersburg SMEs (-20%)
For St. Petersburg UAS R&D Center residents (-30%)
Analysis using polarimetry. Quantitative determination of optically active substances
Analysis using polarimetry. Quantitative determination of optically active substances, with report
Analysis using polarimetry. Determination of specific rotation of optically active substances
Analysis using polarimetry. Determination of specific rotation of optically active substances, with report
1,400 ₽
2,000 ₽
1,600 ₽
2,200 ₽
1,120 ₽
1,600 ₽
1,280 ₽
1,760 ₽
980 ₽
1,400 ₽
1,120 ₽
1,540 ₽
Order service
Contacts
Boris Nikolaev
Chief Researcher of the Chemical Laboratory of the Saint Petersburg Technopark
+7 (812) 670-10-85 (ext. 132)
Address
30 Zanevsky Ave, Bldg 2
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