Voyager DP-263-S Guía de usuario Pagina 430

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 612
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 429
Chapter 7 PSD Analysis
7-26 PerSeptive Biosystems
7
4. In the Calibration section of the Instrument Settings
control page, select the matrix you are using and the
.CAL file you created in “Generating an external
calibration for the precursor ion” on page 7-20.
NOTE: The calibration you specify on the Instrument
Settings control page is used to determine the
t
p
value
(precursor ion flight time) needed for the PSD calibration
equation (described on page 7-8).The
t
p
value is
determined using the standard calibration equation (“t”
in the standard equation described on page 6-9). You
will also specify an external PSD calibration below,
which is used to determine the values for
α
,
β
, and
γ
needed for the PSD calibration equation.
NOTE: If default calibration yields acceptable mass
accuracy for your application, an external calibration is
not required.
Setting precursor
mass and PSD
calibration for
fragment spectra
5. In the PSD Acquisition Settings control page, type the
Precursor mass.
NOTE: Precursor mass is used for PSD calibration.
Type in an accurate value with appropriate precision
(for example, type 1296.68, not 1297).
6. Select Precursor Ion Selector if it is not already
selected.
7. To set PSD calibration, select the default calibration or
select a previously generated external PSD .CAL file. For
more information, see the
Data Explorer User’s Guide
,
Section 8.3.3, Creating PSD Calibration (.CAL) Files and
Applying to Other Data Files.
Vista de pagina 429
1 2 ... 425 426 427 428 429 430 431 432 433 434 435 ... 611 612

Comentarios a estos manuales

Sin comentarios