July 2012
Intermediate to advanced
758 pages
17h 12m
English
Content preview from Pharmaceutical Analysis
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Chapter 8
Refractometry
INTRODUCTION
Refractometry is the method of measuring the refractive index of substances. Refractive index is defined as the ratio of the speed of light in a vacuum to the speed of light in another substance is defined as the index of refraction or refractive index (n) for the substance.
Refraction phenomenon
PRINCIPLE AND THEORY
The main principle involved in refractometry is the refraction based on the speed of the light that passes in the different mediums.
Light enters into the light denser medium to high denser medium at an angle, that is, with bent. The bent in the light ray is known as the refraction. The relation ...