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(a) If marker positions are changed in the “Review” window, the table of results is
automatically updated to reflect these changes. If the marker positions of a standard
analysis are changed, all other analyses are affected. If the marker positions on a
sample are changed, only the results of that analysis are affected.
(b) The selected (highlighted) analysis number in “GLITTER” is also the selected
analysis number in “Review” and “Plot”, and vice versa.
The Device Droplist
The “Device” droplist selects the current ICP-MS system in use, and it is a first and
important step in using GLITTER. The default is the Agilent 7500, but other options
include the Perkin Elmer ELAN-5100, ELAN-6000, ELAN-6100, Finnegan Element
and Element II, Micromass, VG-PQ2 and a generic spreadsheet format.
The Display Droplist
The “Display” droplist is used to select the type of data that appears in the table of
results (e.g. concentrations, error estimates etc.). The list of options that appears in
the droplist is self-explanatory and details on how these values are calculated (other
than the raw data) are given in Section 6. Note that the function of the “Display”
droplist is analogous to the function of the DISPLAY menu.
The PPM/Weight% Option Buttons
Two radio buttons appear below the table of results only when GLITTER is running
in element-concentration mode. In isotope-ratio mode, a label appears here that
identifies the current isotopic system (e.g. U-Pb).
These “radio” buttons allow the user to view the values of the internal standard in
units of parts-per-million (ppm) or weight percent oxide. The selection toggles
between the two concentration units. When the “weight %” button is selected,
concentration values, error estimates and minimum detection limits for the internal
standard are displayed in units of weight % oxide. They will also be exported in
weight % oxide to the .txt file.
The “Update” Button
The “Update” button appears below the table of results in the bottom right corner of
the window. This button is used exclusively for on-line data reduction. Once the
active dataset has been identified (FILE → “Load Data”), the “Update ” button is
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