InterviewSolution
| 1. |
Describe the construction and principle of a Bi-quartz polarimeter |
|
Answer» It is a device used to measure the angle of rotation of plane of polarisation rotated by an optically active substance. principal- Principles of Polarimetry. Polarimetry measures the rotation of polarized light as it passes through an optically active fluid. The measured rotation can be used to calculate thevalueofsolutionconcentrations; especially substances such as sugars, peptides and volatile oils In biquartz polarimeters, a biquartz plate is used. Biquartz plate consists of two semi circular plates of quartz each of thickness 3.75mm. One half consists of right-handed optically active quartz,while the other is left-handed optically active quartz thanks |
|