5.1 Trouble shooting
108
5.1 Trouble shooting
If you find the following problems, perform inspection/maintenance.
Problem Possible cause Solution Reference
Poor retention time
reproducibility
Septum Condition septum. Refer to "4.4
Septum" P. 87.
The position of silica wool in
glass insert
Re-pack silica wool. Refer to "4.6 Glass
insert" P. 91.
Stains in glass insert Cleanse glass insert. Refer to "4.6 Glass
insert" P. 91.
Poor peak area
reproducibility
Septum Condition septum. Refer to "4.4
Septum" P. 87.
The position of silica wool in
glass insert
Re-pack silica wool. Refer to "4.6 Glass
insert" P. 91.
Stains in glass insert Cleanse glass insert. Refer to "4.6 Glass
insert" P. 91.
Ghost peaks are
detected.
Septum Condition septum. Refer to "4.4
Septum" P. 87.
The position of silica wool in
glass insert
Re-pack silica wool. Refer to "4.6 Glass
insert" P. 91.
Stains in glass insert Cleanse glass insert. Refer to "4.6 Glass
insert" P. 91.
Capillary column Condition capillary column. Refer to "4.9
Capillary column" P.
97.
Baseline is unstable. Capillary column Condition capillary column. Refer to "4.9
Capillary column" P.
97.
Ghost peaks are detected
when temp. is rising.
Graphite ferrule Inspect graphite ferrule. Refer to "4.7
Graphite ferrule" P.
94.
Baseline drifts greatly
when temp. is rising.
Graphite ferrule Inspect graphite ferrule. Refer to "4.7
Graphite ferrule" P.
94.
Carrier gas is leaking. O-ring for glass insert Tighten to fix it. Refer to "4.5 O-ring
for glass insert" P.
89.
Carrier gas still leaks
even though you have
tightened the O-ring.
O-ring for glass insert Replace it since it may be
deteriorated.
Refer to "4.5 O-ring
for glass insert" P.
89.
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