Spectrophotometer
Date
2006
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Abstract
The word spectrophotometer is derived from the Latin word spectrum, which means image, and the Greek word phos or photos, which means light. The spectrophotometer is one of the main diagnostic and research instruments developed. It uses the properties of light and its interaction with other substances. Generally, light from a lamp with special characteristics is guided through a device, which selects and separates a determined wave length and makes it pass through a sample. The light intensity leaving the sample is captured and compared with that which passed through the sample. Transmittance, which depends on factors such as the substance concentration is calculated from this intensity ratio.
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Keywords
Spectrophotometer, Phototherapy, UMDNS: 15601