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Vernier Chemical Polarimeter

Order code: CHEM-POL
Purchase QTY: (Each) 1+
Scientrific's price   $1,393.00
Note: Prices do NOT include GST or freight

VERNIER CHEMICAL POLARIMETER
Vernier's Chemical Polarimeter is a device used for measuring the rotation of plane-polarized light caused by optically active substances such as organic, inorganic or biological compounds.

The Polarimeter can be used to measure chiral properties of optically active samples without chemically modifying or destroying the sample. This is a vertical polarimeter that uses a 589 nm LED, a fixed polarizer and a manually rotated polarizer to detect changes in rotation of plane-polarized light in the presence of an optically active compound. Used with Vernier technology, students no longer have to determine the optical maximum with their eye but have a graph that shows a clear change in the light’s polarization.

Requirements:
This sensor requires suitable software and an interface such as one of the Vernier LabQuest variations.
For comprehensive details of the possible sensor/interface/software combinations see the Compatibility Guide link below.

Specifications:
Encoder Resolution: 0.25°
Accuracy (optical rotation measurements): ±1°
Sensitivity: typically up to OD 2
Optical Encoder: Bidirectional, quadrature encoder, 360 cycle per revolution
Light Source: LED
Wavelength (nominal): 589nm

Free Experiments:
Preview, download and/or edit some free polarimetry experiments on the Vernier website. The Student download includes objectives, materials, procedures and analysis. The Instructor download includes notes, sample results, graphs and answers.
View >>>>
1. Understanding Polarimetry
2. Observing the Reaction Kinetics of Sucrose with Polarimetry
3. Isolation and Characterization of Protein and Sugar from Milk
4. Isolating the Enantiomers of 1-Phenylethylamine by Fractional Crystalization

Experiments and Lab Ideas:
• Determine sugar solution purity by optical rotation.
• Characterize the purity of organic and inorganic syntheses yielding chiral products.
• Determine the enantiometric purity of optically active compounds.
• Resolve racemic mixtures.
• Study the kinetics of acid-catalyzed hydrolysis.
• Study the kinetics of enzyme-catalyzed hydrolysis.
• Explore the optical activity of amino acids.

Contents:
• Vernier Chemical Polarimeter
• One Chemical Polarimeter Sample Cell
• User manual

Educational use only:
Vernier and Kidwind products are designed for educational use. They are not appropriate for industrial, medical or commercial applications. Details


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