Ocean Optics CHEM2000 - Manual (Page 14)

2: Using OOIChem Software
The absorbance of a solution is related to the concentration of the species within it. The relationship,
known as Beer’s Law , is:
A
λ
= ε
λ
c l
Where:
A
= Absorbance at wavelength
λ,
ε
= Extinction coefficient of the absorbing species at wavelength
λ
c
= Concentration
l
= Optical pathlength
Cursor Function Bar
+ Sign
When the + is selected, the pointer becomes a crosshair symbol, enabling you to drag the cursor around
the graph.
Magnify Symbols
When the magnify symbol is selected, you can choose from among 6 magnify
functions. The function chosen will remain in use until another magnify icon or
the crosshair symbol is selected. Clockwise, beginning with the top left symbol,
the magnify icons perform the following functions:
Magnifies a specific area by clicking and dragging a box around an area
Zooms in on the horizontal scale, but the vertical scale remains the same
Zooms in on the vertical scale, but the horizontal scale remains the same
Zooms in approximately one point vertical and horizontal, click once or press continuously
Zooms out approximately one point vertical and horizontal, click once or press continuously
Reverts to the last zoom function
Cursor Diamond
To move the cursor left or right in small increments in the graph area, click on the left and right
sections of the move cursor diamond. The top and bottom sections of the diamond will send the
cursor to the next or previous channel in your system. (The Maxwell is a single channel system.
However, additional channels can be purchased at any time.)
8 PRELIMINARY DRAFT 105-00000-CHM-02-0405