INFICON HAPSITE ER Chemical Identification System - Manual (Page 539)

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HAPSITE ER Operating Manual
% RSD . . . . . . . . . . . . . . . . . . . . . . . Percent Relative Standard Deviation. This is
a measure of the linearity (using
mathematical regression analysis) of the
concentration levels in the calibration curve
for each compound.
Sample Loop. . . . . . . . . . . . . . . . . . The portion of the gas chromatograph
through which the inlet flow is directed and
from which the injection is made.
Sample Vial . . . . . . . . . . . . . . . . . . . In this situation, sample vial refers to a 40 mL
glass vial with a plastic cap and PTFE/silicon
septum.
Sample Well . . . . . . . . . . . . . . . . . . A section of the HSS which allows insertion
of a 40 mL sample vial, and is used to heat
the sample during equilibrium.
Scan Method . . . . . . . . . . . . . . . . . . This method specifies the masses to be
scanned by the MS, length of the run,
filament delay, and scan and integration
times.
Scan Time . . . . . . . . . . . . . . . . . . . . In Full Scan analysis, this refers to the
cumulative time required to make a scan of
all the masses in the range specified. The
calculation of Scan Time includes the
integration time and the points/AMU.
Septum . . . . . . . . . . . . . . . . . . . . . . Rubber or silicone part of a sample vial. It
allows for piercing with a needle to inject
standards while retaining an ‘air tight’ seal to
retain volatile compounds.
SIM . . . . . . . . . . . . . . . . . . . . . . . . . . Selected Ion Monitoring. Mass analysis of
one or several ion peaks without scanning
the entire spectrum.
SIM Method . . . . . . . . . . . . . . . . . . . Selected Ion Mode Method. This allows the
user to set up specific masses to be detected
during an analysis. This is used for better
response to specific masses for known
compounds.