Completion of each maintenance procedure and test is tracked using the ProteinChip SELDI OQ
form, a Microsoft Excel spreadsheet supplied on the CD. Test data are exported to the
ProteinChip SELDI OQ form, which then calculates whether the test passed or failed.
Upon completion of the OQ procedure, save, print, sign, date, and place copies of the following
documentation into a notebook or folder for audit review:
• Protocol acceptance page (Appendix B)
• ProteinChip SELDI OQ form summary
Table 1. Summary of procedures and tests.
RReeccoommmmeennddeedd CCoonnssuummaabbllee EEssttiimmaatteedd TTiimmee
TTiittllee FFrreeqquueennccyy UUsseedd RReeqquuiirreedd DDeessccrriippttiioonn
File and protocol
IInniittiiaall SSeettuupp
setup 20 min Complete this procedure the
first time you use the
ProteinChip OQ kit. This
procedure creates the
file structure necessary for
storing the protocols and creates
the routines for high voltage
conditioning and mass calibration.
MMaaiinntteennaannccee
High voltage Weekly N/A 1–2 hr HV conditioning helps to
PPrroocceedduurree 11
(HV) depending on decontaminate the surfaces
conditioning instrument in the instrument.
MMaaiinntteennaannccee
Detector Weekly ProteinChip 45 min to 4 hr This procedure uses the
PPrroocceedduurree 22
calibration detector depending on ProteinChip detector
calibration instrument calibration array to adjust
array the detector voltage. These
adjustments are based on a
rolling average that stabilizes
the gain, improving spectral
reproducibility over the lifetime
of the detector.
TTeesstt 11
Detector Biweekly ProteinChip 30 min to 1 hr This test uses the ProteinChip
sensitivity detector detector calibration array to
qualification measure the signal-to-noise
array ratio (S/N) of immunoglobubulin
(IgG) at two different
concentrations (10 fmol and
140 fmol). Measurements are
compared to a specification, and
a pass/fail disposition is
obtained.
2
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