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Friday, March 28, 2008

NEPHELOMETRY


Image from: http://www.lib.mcg.edu/.../ch4/ch4img/nephelom.jpg
and http://www.gmi-inc.com/CliniLab/Beckman%20Immage.htm

Enter the LINK below to know more:

'Nephelometry' link';

NEPHELOMETRY

The light that is scattered by particles in the unknown solution is measured and made as a basis of determining its concentration.

Factors affecting the amount of light scattered are:

a.the wavelength used – dispersion of light is inversely proportional to the
wavelength.
b.the size of the particles
c.the amount of particles in solution
d.the cross sectional area of the particles
e.the source of light - monochromatic lights give more reliable readings because they
minimize sample heating and have more stable readings.

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