SRI GCS Literature Detailed ex SRI website 2014 - page 99

MulipleGas#3 plusSulfur
GCConfiguration
The sample loop is loadedwith new
sample by flushing the loopwith 10ml
ormore of fresh sample. The loop it-
self is 1ml, but it takes 10ml to com-
pletely flush it. Sulfur compounds like
H2S can be lost on activemetal sur-
faces, sowe use a special kind of tub-
ing tomake the loop called “Sulfinert”.
Sample can be pushed through the
loopwith a syringe, or it can flow con-
tinuously, or it can be pulled through
with suction ( vacuum pump ). For
sulfur compounds it is important to
useTeflon tubing to avoid losses.
TheGCs temperature program and
event table is set up
as shown. Users
may expect tomake
modifications de-
pendingon theexact
molecules being
measured.
1ml Sulfinert loop
1...,89,90,91,92,93,94,95,96,97,98 100,101,102,103,104,105,106,107,108,109,...870
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