Torch Alignment; Auto Peak Adjust - Thermo Scientific iCAP 6000 Series User Manual

Torch Alignment

Auto Peak Adjust

Thermo Fisher Scientific
and clamp into position. Release the tension adjustment and allow the
nebuliser to free aspirate. Tighten the tension adjustment until the flow
just stops then tighten by one turn. Turn on the pump and, if
necessary, tighten the tension until a smooth flow is produced.
Set the drain pump tubing tension to obtain an even and steady flow
out of the spray chamber.
Do not over-tighten the pump clamps as it will result in excessive wear
and tear of the pump tubing and require replacement tubing at more
frequent intervals.
For maximum sensitivity and optimum results the alignment of the
plasma image is critical. Whenever a torch has been removed or
replaced in the instrument, or if the torch body or centre tube have
been replaced, a torch alignment procedure should be carried out.
When the plasma is on and stabilised click on the Instrument
and select Torch Alignment Torch Alignment. The window below will be shown. Select Torch Alignment Torch Alignment
Aqueous or Organic Aqueous Organic according to the matrix you are using and click on
Aqueous Aqueous Organic Organic
the Run Run button to start the routine. You will be prompted to aspirate a
Run Run
solution of 2 ppm zinc and this should be made up with either an
aqueous or an organic matrix as required.
Figure 2–14. Torch alignment window
For optimum performance it is important that the analyte wavelengths
are correctly aligned in the centre of the subarray measurement window.
The iCAP 6000 Series Spectrometer will automatically check a
reference line each time the plasma is ignited to maintain wavelength
accuracy.
Auto Auto Auto P P P Peak Auto eak only eak eak only needs to be run whenever a new wavelength is used only only needs to be run whenever a new wavelength is used needs to be run whenever a new wavelength is used needs to be run whenever a new wavelength is used
for analysis. for analysis. The auto peak may also need to be run if the instrument
for analysis. for analysis.
has been switched off for an extended period of time.
Standard Sample Introduction Glassware Assembly
Instrument menu Instrument Instrument
iCAP User Guide
Instrument Set-up
2-15