Dry Chemistry Analyzer

PRINCIPLE

o The main principle of dry chemistry is based upon the reflectance spectrophotometry.

o Reflectance spectrophotometry measures the reflectance of materials.

o They provide a reference standard for the comparison of the color of different samples.

Spectrophotometer

is a device that measure the light intensities as a function of wave length.

It does it by diffracting the light beam into a spectrum of wavelength, detecting the light intensities with charged couple device.

COMPONENTS OF SPECTROPHOTOMETER

o Light source

o Device to isolate light of a desired wavelength

o Cuvet

o Photodetector

o Readout device

o Data system.