To Verify Nci Performance - Agilent Technologies 5977B Series Operating Manual

5 Operating in CI Mode

To Verify NCI Performance

This procedure is for EI/PCI/NCI MSDs only.
Materials needed
• OFN, 100 fg/µL 3 × 1 mL (5188-5347)
Always verify MSD performance in EI before switching to CI operation. (See
C A U T I O N
EI System Performance"
you are going to run NCI.
Procedure
1 Verify that the MSD performs correctly in EI mode.
2 Load the NCICH4.U tune file, and accept the temperature setpoints.
3 Select Gas A and set flow to 40%.
4 In Tune and Vacuum Control view, run CI Autotune. (See
5 Run the NCI sensitivity method: OFN_NCI.M using 2 µL of 100 fg/µL OFN.
6 Verify that the system conforms to the published sensitivity specification.
140
Autotune (Methane Reagent Gas)"
Note that there are no criteria for a "passing" Autotune in CI. If the
Autotune completes, it passes.
Please refer to the Agilent Web site at
specifications.
on page 108.) Always set up the CI MSD in PCI first, even if
on page 137.)
www.agilent.com/chem
"To Perform an NCI
for
5977B Series MSD Operating Manual
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"To Verify