Inficon HAPSITE ER - Glossary

14 - 1
HAPSITE ER Operating Manual
Chapter 14
Glossary
14.1 Glossary
Air peak . . . . . . . . . . . . . . . . . . . . . . A response by the mass spectrometer to the
components of air. This set of compounds
typically elutes 1 to 1.5 minutes from the start
of analysis.
Alignment . . . . . . . . . . . . . . . . . . . . A part of the tuning process which assures
that the mass peaks fall at their calibrated
position on the mass scale.
AM . . . . . . . . . . . . . . . . . . . . . . . . . . Analytical Module, also called the HAPSITE
and HAPSITE ER.
AMDIS . . . . . . . . . . . . . . . . . . . . . . . Automated Mass Spectral Deconvolution
and Identification System Software
AMU . . . . . . . . . . . . . . . . . . . . . . . . . (Atomic Mass Unit) an unit that is used for
indicating mass on an atomic scale
Analyte . . . . . . . . . . . . . . . . . . . . . . That portion of a sample which comprises
compounds to be analyzed.
AutoTune. . . . . . . . . . . . . . . . . . . . . A process that occurs when the instrument is
initially started up; it automatically performs
mass alignment, resolution adjustment and
adjustment of relative intensity of the peaks.
AutoTune will take place once the heated
zones have reached the proper temperature.
Baseline . . . . . . . . . . . . . . . . . . . . . A measure of the intensity of the background
noise of the mass spectrometer. This is
determined using the Noise Check feature in
the Tune program.
Carrier Gas . . . . . . . . . . . . . . . . . . . The pure inorganic gas used to aid the flow
of sample gas through the chromatograph for
analysis. VOC-free nitrogen is the carrier gas
for the HAPSITE ER.