SRITN12 - page 203

Quick Start
GC Installation Guide
A. Syringe Injection
B. Valve Injection
1. Entera temperatureprogram for thecolumnoven. The temperature
program isdeterminedby thesampleand thegoalsof theanalysis.
2. Forgassamples, fill the1mLgassyringewith0.5-1mL. For liquid
samples,fillthe10µLliquidsyringewith1µL,removingthebubblesbefore
injecting.
3. Clickon theAutoZerobutton tozero
thedatasystemsignal. Hit thecomputer
keyboardspacebar.
4. Pierce theseptum in theon-column injectorwith thesyringe
needle. Insert theneedlestraight into theon-column injector
port;avoidbending theneedle. Depress thesyringeplunger to
inject thesample, thenwithdraw thesyringe. For thebestand
mostconsistentresults,useaneasilyreproducible injection techniquewithquick,smoothmovements.
1. Set thevalveoven temperaturebetweenambientand175
o
C
using the trimpoton the topedgeof thefrontcontrolpanel. Enter
a temperatureprogramfor thecolumnoven.
3. Sample is injected into thebulkheadfitting
labeled“SAMPLEIN”on thefrontof thevalveoven. Thefitting isequippedwitha1/8”
Swageloknutforeasyconnectionofsamplestreams.
4. Press the computer keyboard spacebar to initiate the run. Thevalvewill automatically rotate to the
INJECTpositionat0.1minutes(orwhatever timeyouentered in theEventsTable).
TheAutoZerobutton
is on the left side of
the chromatogram
window.
Syringe injection of 0.5mL
gas sample into the on-
column injector on a TCD
equippedModel310GC
V. InjectYourSample
NOTE: Ifyouare injectingwithaPurge&Trap,TO-14,orHeadspaceconcentrator, a thermaldesorber,an
autosampler,oranyoftheheatedon-columninjectors(PTV,Split/Splitless,etc.),pleaseseethecorresponding
manualsectionforoperatingprocedures.
2. Enteraneventprogram toautomatically inject thecontentsof
thevalvesampleloop. ThevalveisusuallyintheLOADposition
(default),duringwhichRelayGisOFF.WhenrelayGisactivated,
thevalve isrotated to theINJECTposition, inwhich thecarrier
gas stream sweeps the contents of the sample loop onto the
column(s). Set thevalve toINJECT(RelayGON)0.1minutes
into therununlessyouhavespecificrunparameters that require
differenttiming.
EventsTable
1...,193,194,195,196,197,198,199,200,201,202 204,205,206,207,208,209,210,211,212,213,...505
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