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IPN 074-397-P1G
HAPSITE Smart Operating Manual
Spectrum Grab . . . . . . . . . . . . . . . . This action is performed in the Run Method
program to store information about a
compound, including name, retention time,
and relative mass intensities for the 10
largest mass peaks. This information, when
grabbed, is stored in a grabfile.
Target Ion . . . . . . . . . . . . . . . . . . . . The specific ion mass which will be used for
quantification or primary identification of a
compound in the Library (also referred to as
Compound Library).
Temperature Programmable . . . . . Software controlled temperature
programming that allows the user to reach
temperatures from ambient 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 presentation of
the flow from the GC as measured by the
mass spectrometer, adding up the signals
from all the masses programmed and
presented as a function of time.
TMP . . . . . . . . . . . . . . . . . . . . . . . . . Turbo Molecular Pump
Torr . . . . . . . . . . . . . . . . . . . . . . . . . Unit of sub-atmospheric pressure.
Equivalent to 133.3 pa.
Tune . . . . . . . . . . . . . . . . . . . . . . . . . A term (noun or verb) which generally refers
to mass spectrometer settings used to
distinguish and detect mass fragments.
Vacuum Interconnect Valve. . . . . . . . . . . . . . . The two-part valve which seals
the HAPSITE manifold, when closed, and
opens it to the vacuum pumps in the Service
Module, when open. The Vacuum
Interconnect Valve is powered by a motor
within the Service Module, under direction of
the HAPSITE.
VSO Valve . . . . . . . . . . . . . . . . . . . . Voltage Sensitive Orifice valve. This valve
uses voltage applied to the valve to control
the size of its orifice. This in turn controls the
flow rate of gas through the HSS and
HAPSITE, when connected.
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