Inficon HAPSITE ER - Page 417

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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.
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.
SIM . . . . . . . . . . . . . . . . . . . . . . . . . . Selected Ion Monitoring. Mass analysis of
one or several ion peaks without scanning
the entire spectrum.
Target Ion . . . . . . . . . . . . . . . . . . . . The specific ion mass which will be used for
quantification or primary identification of a
compound in the library.
Temperature Programmable . . . . . Software controlled temperature
programming that allows the user to reach
temperatures from 55°C to 225°C in a
controlled ramp.
Threshold . . . . . . . . . . . . . . . . . . . . A measure of the amplitude of the
background noise of the mass spectrometer.
This is determined using the Noise Check
feature in the tune program.
TIC . . . . . . . . . . . . . . . . . . . . . . . . . . (Total Ion Chromatogram) A graph of time
verses signal intensity.
TMP . . . . . . . . . . . . . . . . . . . . . . . . . Turbo Molecular Pump
Torr. . . . . . . . . . . . . . . . . . . . . . . . . . Unit of sub-atmospheric pressure.
Equivalent to 133.3 pa.