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HAPSITE ER Operating Manual
Internal Standard . . . . . . . . . . . . . . A mix of known compounds with known
concentrations. They are mixed with the
sample analytes to validate the response of
the HAPSITE ER.
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 where
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 Calibrate screen
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 ER.
Library . . . . . . . . . . . . . . . . . . . . . . . A user compiled list of compounds, which
includes both analytes and internal
standards (if chosen). The library keeps
information such as the name, target ion,
concentration, retention time, relative mass
intensities, and compound specific search
parameters (if selected).
Mass Calibration . . . . . . . . . . . . . . A function of the HAPSITE ER which uses
internal standard gas to check the alignment
of masses, and also to check the relative
intensities of the tune masses.
Mass Fragment. . . . . . . . . . . . . . . . A molecule (or ion) resulting from the
break-up of a parent molecule.
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