Table of Contents
Advertisement
Delayed signal
during run
Sample masses
observed but weak,
or masses other
than the analyte
observed
Table 8-3 General Troubleshooting
• Verify nitrogen pressure. Sample may drip
through the cone and still be detected later.
• Check priming valve tightness. A slight leak
will delay sample.
• Verify the splitting valve is not leaking.
• Check for leaks around other fittings on the
solvent interface.
• Check polarity to see if the sample ionizes
under the opposite polarity.
• "Try another ionization settings [I
S
ETTINGS [6.3.10]
• "Compound fragments- use fragment mass
or try another ionization setting.
• "Compound forms adducts.
• Compound fails to ionize using the selected
probe. Some compounds ionize better using
APCI rather than ESI, for example.
Section 8 Maintenance
].
ONIZATION
8-23
Advertisement
Table of Contents
