Inficon HAPSITE ER - Page 416

14 - 5
HAPSITE ER Operating Manual
Phase. . . . . . . . . . . . . . . . . . . . . . . . The coating on the inside of the gas
chromatograph column by which organic
vapors are retained.
PPB . . . . . . . . . . . . . . . . . . . . . . . . . Parts per billion concentration level.
PPE . . . . . . . . . . . . . . . . . . . . . . . . . Personal Protective Equipment.
PPM . . . . . . . . . . . . . . . . . . . . . . . . . Parts per million concentration level.
PPT . . . . . . . . . . . . . . . . . . . . . . . . . Parts per trillion concentration level.
Remote Power . . . . . . . . . . . . . . . . Power supplied to the HAPSITE and HSS
either from the Service Module (for the
HAPSITE) or external AC - 24 V(dc)
converter.
Resolution. . . . . . . . . . . . . . . . . . . . These settings in the tune program affect the
way the mass spectrometer resolves peaks.
Increasing the resolution narrows the peaks
in that mass range, while lowering the
resolution will broaden the peaks.
Retention Time . . . . . . . . . . . . . . . . The elapsed time from injection of a specific
compound onto the column until the
compound exits the column (same as
retention time).
Reverse Search . . . . . . . . . . . . . . . A function of the NIST search (tentative
unknown identification) library which allows
compounds which are specified in the user
library to be identified as part of the search.
RH . . . . . . . . . . . . . . . . . . . . . . . . . . Relative humidity.
RIC . . . . . . . . . . . . . . . . . . . . . . . . . . (Reconstructed Ion Chromatogram) A
presentation of the chromatographic record
which extracts from the TIC and displays the
intensity of the ion or ions specified.
Round Trip Time. . . . . . . . . . . . . . . The amount of time required to complete a
scan of all the masses specified in a SIM
method. This includes the number of
masses, integration time, number of extra
measurements, lead in time, and peak width.
RMA . . . . . . . . . . . . . . . . . . . . . . . . . Return material authorization document.
Returning material can not be sent back
without this document.