Waltron 3041 - Applications; Working Principle; Figure 2.2: Waltron 3041 Inside View with Electrical Box and Liquids Box Shown

16
Waltron User Manual 101-016-B.3
3041 Silica Analyzer
Introduction
Figure 2.2: Waltron 3041 inside view with electrical box and liquids box shown.
2.2 APPLICATIONS
The Waltron 3041 Analyzer is designed for measurement of silica concentrations in high purity
water.
2.3 WORKING PRINCIPLE
Lambert-Beer Law
A colorimetric determination is based on the color-formation after addition of reagents. The
absorbance of the solution is measured at a specific wavelength. The absorbance is related to
sample concentration according to 'Beer's law'.
The Lambert–Beer law is an empirical relationship that relates the absorption of light to the
properties of the material through which the light is travelling.
The law states that there is a logarithmic dependence between the transmission (or
transmissivity), T, of light through a substance and the product of the absorption coefficient of the
substance, α, and the distance the light travels through the material (i.e. the path length), ℓ.
The transmission (or transmissivity) is expressed: T = I
1
/ I
0
Electrical Box
Liquids Box