INFICON HAPSITE Smart Plus Chemical Identification System - Manual (Page 553)

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HAPSITE Smart Plus Operating Manual
Inlet State . . . . . . . . . . . . . . . . . . . . This refers to a specification of the state of
the valves in either the HAPSITE or
HAPSITE with Headspace Sampling
System. The states of the valves control
sampling, analysis, clean-out of the
HAPSITE and Headspace Sampling System.
It can also be user specified.
Internal Standard . . . . . . . . . . . . . . A mix of known concentrations of known
compounds which are installed in the
HAPSITE. They are mixed with calibration
compounds during calibration and with
samples during analysis to validate the
response of the HAPSITE to the target
analytes.
Ion Energy. . . . . . . . . . . . . . . . . . . . These settings in the Tune program directly
affect the intensity of mass peaks. Ion
energies are commonly used to set the
relative mass intensities of the tuning ions.
Ion Volume . . . . . . . . . . . . . . . . . . . The specific space in the ionizer within which
ionization of the sample takes place.
Ion . . . . . . . . . . . . . . . . . . . . . . . . . . An atom or molecule which carries an electric
charge due to depletion or addition of one or
more electrons.
Ionizer . . . . . . . . . . . . . . . . . . . . . . . The assembly of parts in the mass
spectrometer into which the sample flows
and which projects a beam of mixed ions into
the mass filter.
I.S. Reference . . . . . . . . . . . . . . . . . This section of the Compound Library
identifies the target ion of the internal
standard which will be used for quantification
of the chosen compound.
kPa . . . . . . . . . . . . . . . . . . . . . . . . . . Kilo Pascal. Unit of pressure measurement
which is equivalent to approximately 0.145
PSI.
LCD . . . . . . . . . . . . . . . . . . . . . . . . . Liquid Crystal Display. This refers to the
display screen on the front panel of the
HAPSITE.
Lead In. . . . . . . . . . . . . . . . . . . . . . . The time which is allowed for the mass
spectrometer to stabilize before detecting a
mass during SIM analysis.