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Agilent GC-<strong>ICP</strong>-<strong>MS</strong> Interface<br />
GC-<strong>ICP</strong>-<strong>MS</strong> System used:<br />
<strong>ICP</strong>-<strong>MS</strong>: Agilent 7500<br />
GC: Agilent 6890<br />
Interface: Agilent G3158A<br />
Courtesy Raimund Wahlen, LGC Teddington<br />
Page 24<br />
Fully heated and insulated GC transfer line<br />
Modified torch with heated injector replaces<br />
standard demountable torch<br />
“Silicosteel” transfer line and injector liner<br />
for inertness<br />
GC effluent injected directly into base of<br />
plasma l<br />
Very high transport efficiency, high plasma<br />
temperature (no water vapour/aerosol) and<br />
no solvent-based interferences<br />
High g pplasma temperature p means elemental<br />
response is high, even for poorly ionized<br />
elements.<br />
Also, elemental response is independent of<br />
compound, so compound independent<br />
calibration (CIC) ( ) is ppossible<br />
ESAC April 2008
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