Which one of the following statements concerning turbidimetry is not correct? A.

Question

Which one of the following statements concerning turbidimetry is not correct?

A. Turbidimetry is the measure of the concentration of particles by measuring the amount of incident light blocked by the particles.

B. In a turbidimetric measurement, light scattered by solutes in the solution at 180 degrees from the incident light is measured by a photodetector.

C. The intensity of the scattered light is directly proportional to the number of particles in solution.

D. In a turbidimetric procedure, the measurement of light is made at right angles to the incident light.

Explanation / Answer

The following statements concerning turbidimetry is not correct:

C. The intensity of the scattered light is directly proportional to the number of particles in solution.

It is because Turbidimetry is the measure of the concentration of particles by measuring the amount of incident light blocked by the particles.

The phenomenon in which the intensity of the scattered light is directly proportional to the number of particles in solution is called Nephelometry.

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