Reference information A
Monitor UV-900 User Manual 18-1120-05 Edition AF
33
The long path length and small volume of the flow cell ensure very high
sensitivities and high signal-to-noise ratios. The detection system is also very
stable and because the optical unit is located away from the lamp and
electronics, noise and drift caused by temperature variations is avoided.
At calibration the instrument automatically finds 2 persistent lines in the
spectrum of Xenon. The wavelengths of these k nown lines are used to calibrate
the stepper motor that turns the grating.
Detectors
and electronics
Flash lamp 100 Hz
Monochromator
Beam
splitter
S
R
Con-
densor
Block
filter
Flow cell
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