62 . Raman IdentiCheck Getting Started Guide
SOP-9: Intensity Calibration of the Raman
IdentiCheck
NOTE: This procedure does not use the trigger. The probe is supported in a clamp stand
during the calibration.
The intensity calibration must be performed using the National Institute of Standards and
Technology (NIST) Standard Reference Material. NIST SRM 2241 is the relative intensity
correction standard for Raman spectroscopy when using 785 nm excitation.
NOTE: NIST calibration is temperature dependent. If you intend to perform quantitative
analyses, you should ensure that your instrument is NIST calibrated at the
temperature at which data is to be acquired. Contact your PerkinElmer Raman
Business Unit.
Otherwise, any data should be used for qualitative analyses only.
1.
Ensure the IdentiCheck is switched on and is stable, by following SOP-1.
2.
Ensure that the Triggered Fiber Optic Probe is selected as the Accessory; see
Commissioning your Instrument
on page 48.
The Probe Path LED on the probe will be illuminated.
3.
On the Setup Instrument Advanced tab, ensure that the laser power is set to 100%.
4.
Optimize the Raman signal from the NIST standard (part number L1321831), with the
dull surface pointing upwards, and then clamp the probe in place using a clamp stand.
It is advisable to collect some spectra from the sample to ensure that the Raman signal
is optimized and that there is no contribution to the spectra from the sample holder.
Refer to
SOP-4: Collecting a Spectrum with a Triggered Fiber Optic Probe
on page 56.
5.
Cover the probe and sample with a thick, black cloth to avoid any stray light reaching
the detector.
6.
Select
Toolbox
on the Setup Instrument Advanced tab.
The Adjustments Toolbox dialog is displayed.
7.
Select
.
The Intensity Calibration dialog is displayed.
8.
Click
Next
.
The instrument will now perform the intensity calibration routine. At the end of the
Intensity Calibration the result is displayed.
9.
Remove the intensity correction standard from the test plate assembly and store safely.
Any data acquired will now be intensity corrected.
Содержание Raman IdentiCheck
Страница 1: ...Raman IdentiCheck Getting Started Guide MOLECULAR SPECTROSCOPY ...
Страница 5: ...Introduction ...
Страница 10: ...10 Raman IdentiCheck Getting Started Guide ...
Страница 11: ...Safety Practices ...
Страница 26: ...26 Raman IdentiCheck Getting Started Guide ...
Страница 27: ...Raman History Theory and Instrumentation ...
Страница 34: ...34 Raman IdentiCheck Getting Started Guide ...
Страница 35: ...Introduction to the Raman IdentiCheck ...
Страница 50: ...50 Raman IdentiCheck Getting Started Guide ...
Страница 51: ...Using the Raman IdentiCheck ...
Страница 65: ...Maintenance and Troubleshooting ...
Страница 73: ...Appendix A Using your own PC ...
Страница 78: ...78 Raman IdentiCheck Getting Started Guide ...