Voyager DP-263-S Guía de usuario Pagina 534

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Appendix H Continuous Extraction Mode
H-6 PerSeptive Biosystems
H
6. Set the Grid Voltage% appropriate for the matrix and
mass:
7. Save the instrument settings (.BIC) file.
8. Determine the laser threshold for the sample and adjust
the laser setting until you obtain the resolution needed for
your application.
Laser position and laser intensity are the primary
factors affecting the quality of spectra. However, you
may slightly improve the quality of data by fine-tuning:
Grid Voltage% within the ranges listed above
Guide Wire Voltage% within the ranges listed
below
Table H-4 Grid Voltage% Settings for Continuous
Extraction Mode
Matrix Mass (Da) Grid Voltage%*
α
-cyano-
4-hydroxycinnamic acid
<5,000 50–70
>5,000 70–90
Sinapinic acid <5,000 80–85
>5,000 85–90
DHB
3-HPA
<5,000 85–90
>5,000
* In Reflector mode, lower Grid Voltage% settings may
yield greater resolution, but may compromise sensitivity.
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