NeuLog NUL-219 Guia Del Usuario página 24

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Light is transmitted from four different colored LEDs
inside the sensor's body, one color at a time, passed
through the cuvette containing a solution and then
detected at the other end to determine the absorbance
or transmittance of light at a specific wavelength.
The sensor works off of Beer's Law which is explained in
the section "Beer's Law" below.
The four wavelengths emitted are:
 Red: 634-662 nm
 Blue: 452-476 nm
 Green: 500-530 nm
 Orange: 595-625 nm
Beer's Law
Beer's Law is an extremely useful concept for solution
concentration testing in the fields of Chemistry and
Biology.
Standard curves are created by using solutions of
known concentrations which are analyzed in a
colorimeter to determine the absorbance and then plot a
graph. The absorption for unknown samples can easily
be tested and plotted on the standard curve to
determine their concentration.
V2018.01 English