horiba FluoroMax-3, Руководство по эксплуатации

Страница: 163 / 220

FluoroMax-3 v. 3.1 (7 Mar 2006) Components & Accessories
12-3
Note:
If uncertain of the absorption range, enter a range of 250 nm to
400 nm, and scan the excitation spectrometer. Detailed instructions
for setting parameters are contained in the on-line help. The S/R ac-
quisition mode compensates for fluctuations in lamp intensity, and
wavelength dependency of the lamp and excitation spectrometer.
Model 1940 Absorption/Transmission
Accessory
The Model 1940 Absorption/Transmission
Accessory slightly displaces the sample
from its normal position and directs the
transmitted light into the collection optics
with a mirror mounted at 45°.
Installation
1
Remove the sample
holder currently in place.
2
Position the Model 1940 on the posts.
3
Tighten the two thumbscrews.
Before transmission or absorption spectra are acquired, the emission and reference sig-
nals must be optimized.
Signal optimization
1
Place the cuvette containing the blank in the
sample holder.
2
Set the emission monochromator position to 0
nm.
3
Select acquisition mode
S/R
.
4
Run an excitation scan over the absorption
range of the sample.