Polarmeter what is it? Do you have a good understanding of the structure, application and working principle of the polarimeter? Please refer to the following article to better understand this type of specialized equipment.

1. What is a polarimeter?

A polarimeter can be understood as a device used to determine the concentration of raw materials, control purity , chemical composition determination, chemical process monitoring, etc. Polarimeters are often used in the pharmaceutical, chemical, food, flavoring, perfumery industries, ..

The polarimeter is usually divided into lines like:

– With thermostat

– No thermostat

– ABBE 

2. Polarimeter construction

Depending on the manufacturer, polarimeter products can be manufactured in different shapes and sizes. However, most of them are composed of the following main parts:

• Polar spinner: understood as photoactive substances that act as photoactive substances rotate the plane of polarization of the fully polarized light produced by the polarizer.
• Polarizer: this unit is a device used to create beams of light fully polarized light, usually made of two halves of a nicol prism side-by-side or polaroid plates.
• Analysis: This part has roughly the same construction as the part. polarizer and is used to determine the angle of rotation of the plane of polarization when passing through the polar rotating material.

3. Working principle of polarimeter

When the oscillating faces of the analyzer and polarizer are parallel to each other, the light is unpolarized after passing through the plate the polarizer below will only oscillate in one direction and this direction is parallel to the oscillation of the analysis center, so it will continue to pass and hit the observer’s eyes.

When the direction of oscillation of the polarizer is perpendicular to the direction of oscillation of the analyzer, the light will be detected by the analyzer extinguished and the observer can only observe the dark field.

4. Polarimeter Application

Some areas where polarimeter can be applied:

In the food and beverage industry, it is used to control the characteristics, quality, and purity of raw materials. raw materials and final products, determination of sugar concentrations in beverages and candies,..

In the pharmaceutical industry, this instrument is used for concentration determination such as pharmaceutical ingredients, purity testing , determining chemical composition and interacting substances.

In research and education, it is used to determine the glucose interaction, the concentration of polysaccharides through alkylation .

In the chemical industry, it is used for concentration determination and purity control, chemical process monitoring science in the production of optically active substances in the laboratory, chemical reaction analysis.
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5. Current popular current polarimeters

Kruss P8000-P Series Thermostat Polarimeter

Kruss P8000-P Series Thermostat Polarimeter with Peltier technology, callows measurement of high precision High accuracy through temperature feature control without peripheral support.

This is the main advantage of the P8000-P Series polarimeter. The device enables the temperature of the sample to be controlled extremely precisely in a very short period of time and makes the measurement cycle short and independent of the outside temperature.

Excellent Features:

– Measure the temperature directly inside the sample

– Accurate, uniform, fast Peltier thermostat

– Chemical resistant, durable sample tube

– High accuracy on full scale

– Very short measurement time approx. 1 second

– Optical density measurement up to 3.0 OD

– Intuitive operation via touch screen

– Preset scales (opt. rotation, spec. rotation, int. sugar scale, concentration)

– Predefined and preset scales with custom formula-based conversion values

– Chemical resistant material

– GMP / GLP Compliant, 21 CFR Part 11, Pharmaceutical (USP, BP, JP, Ph. Eur.), FDA, ISO, HACCP, OIML, ASTM, ICUMSA, NIST

Kruss P8000-T Series Thermostat Polarimeter

Kruss P8000-T Series Thermostat Polarimeter will allow temperature control in the range of 8°C to 35°C when combined with sample tubes with temperature probes and a water circulating thermostatic bath. That makes them suitable for highly accurate measurements in quality control. Especially if it is necessary to use many different types of sample tubes, the P8000-T Series is the right choice.

Excellent Features:

– Measure the temperature directly inside the sample

– Precise, homogeneous, fast water circulation bath

– Many choices with different sample tubes

– Quick coupler system for easy tube changes

– High accuracy on full scale

– Very short measurement time approx. 1 second

– Optical density measurement up to 3.0 OD

– Intuitive operation via touch screen

– Preset scales (opt. rotation, spec. rotation, int. sugar scale, concentration)

– Predefined and preset scales with custom formula-based conversion values

– Chemical resistant material

– GMP / GLP Compliant, 21 CFR Part 11, Pharmaceutical (USP, BP, JP, Ph. Eur.), FDA, ISO, HACCP, OIML, ASTM, ICUMSA, NIST

Hopefully through the article, you have been able to clearly understand what a polarimeter is, its structure, principles and applications in life and manufacturing. Equipment Co., Ltd Hiep Phat currently providing product lines polarimeter from Kruss. If you are interested in purchasing our product lines, do not hesitate to contact us via Hotline: 098 4677378 or Email: sales@thietbihiephat.com for more product information.