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Corrective Action
Possible Cause
Symptom
a. Set GS1 and IS or ISVF to 0. If droplets
are not visible at the tip, then there is a
leak or blockage. (Refer to the following
tips in this table.)
b. Disconnect the connection between the
spray tip and union. If droplets appear,
then the emitter tip was blocked. Replace
the emitter tip. Refer to
®
c. For the syringe sample line, use tubing
with a larger i.d. (75 µm or larger) to
reduce back pressure. A smaller diameter,
25 µm, is appropriate for the LC sample
line.
d. Troubleshoot the connection leak
• Tighten all connections until a droplet
forms at the emitter tip. Do not
overtighten. Overtightening crushes
the silica. If the silica is damaged,
then cut it and then clean it with
isopropanol.
Note:
Do not cut damaged fused
silica-lined PEEK tubing. It must be
replaced.
• Make sure that the sleeve size
matches the o.d. of the fused silica.
• Make sure that the ferrule used in the
union is a high-pressure ferrule.
e. Confirm that the correct union is being
used. Sonicate or replace the union.
f. Recut the blunt end of the emitter tip, or
recut the end of the sample line at the
point where it connects to the union. Do
not cut the PEEK-lined fused silica tubing.
a. Liquid is not arriving at the sprayer head.
b. The emitter tip is blocked or damaged.
c. The diameter of the syringe sample line
is too small.
d. A connection is leaking. This can result
from:
• A poor or over-tight connection
• An incorrect sleeve size
• An incorrect ferrule in the union
e. The union is blocked.
f. The sample line contains a blockage.
No spray
NanoSpray
®
Ion Source
Operator Guide
69 / 92
RUO-IDV-05-0811-F
Troubleshooting