GE MOA 280i, Operation And Maintenance Manual

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GE Analytical Instruments ©2006
12-4
DLM 14291 Rev. A
vessel. When samples are injected into the purge vessel, the needle will be below
liquid level. If the liquid level is not near the top of the purge vessel, injections
may hit the wall of the purge vessel resulting in a broad peak. To raise the level,
use a syringe to add water through the septum until the level is near the top.
Water/acetic acid mixtures will foam (even with the antifoaming agent) and this
foaming should be near the top of the purge vessel but not into the condenser.
If the liquid level is too high, close the outlet stopcock while continuing to allow
gas to flow into the purge vessel. Once the bubbling slows, close the gas inlet
stopcock. Release any pressure in the purge vessel by slowly opening the screw
cap and then drain some of the reagent using the drain stopcock.