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Acquisition Troubleshooting Tips
Corrective Action
Possible Cause
Symptom
a. Refer to
®
to troubleshoot
spray problems.
b. Use the X-Y-Z adjustment knobs to adjust
the emitter tip position.
a. No spray is being generated.
b. The ion source head position is incorrect.
No signal
a. Make sure that all of the post-column
tubing has an i.d. less than or equal to
25 microns.
b. Inspect all of the connections to make
sure that they are properly seated.
c. Flush all cuts.
d. Replace the emitter tip.
Refer to
®
.
a. The union has a dead volume.
Unexpectedly wide
LC peaks or tailing
a. Optimize the source. Refer to
®
.
b. Inspect for leaks. Refer to
.
c. Use the
Instrument Optimization
wizard to optimize the mass
spectrometer.
d. Inspect the sample concentration. Use
either fresh sample or sample that has
been frozen. Use an alternate sample,
such as 5600 Tuning Solution, Renin, or
Reserpine, to determine whether the
sample is causing an issue.
e. Troubleshoot the autosampler or LC
pumps.
a. The source position, tip protrusion, or
source parameter values are incorrect.
b. The syringe or sample line is leaking.
c. The mass spectrometer is not optimized.
d. The sample has degraded or has a low
concentration.
e. There is a problem with the autosampler
or LC pumps.
Low peak intensity
a. Optimize the instrument.
a. The instrument is not optimized.
Poor MS resolution
NanoSpray
®
Ion Source
Operator Guide
75 / 92
RUO-IDV-05-0811-F
Troubleshooting