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Index-10 PerSeptive Biosystems
Index
Default calibration
description 6-7
equation 6-9
PSD 7-8
selecting 5-10
Default layout, Instrument Control
Panel 4-8
DEFAULT.SP 6-46
Deflector Gate Width, setting 2-35, 7-9
Deisotoping before calibration to
ensure monoisotopic peak is
identified 6-66
Delay Time
affected by matrix 5-45, 5-64
and Grid Voltage% 5-45, 5-63, E-1
description 5-18, 5-44
effect on resolution 5-39
impact on fragmentation 5-39
impact on sensitivity 5-39
isotope resolution 5-71
minimum increments needed 5-44,
5-67, 5-70
optimizing 5-67
settings for mass ranges 5-69
Delayed Extraction
acceptable spectra 6-20
advantages 1-14
comparison to Continuous
Extraction 1-13
Delay Time setting 5-69, E-1
description 1-12
determining if hardware
installed 2-36
Grid Voltage% and Delay Time,
relationship between 5-45,
5-63
Grid Voltage% setting E-1
Guide Wire Voltage% 5-74
Instrument Settings
parameters 5-63
isotope resolution 1-13, 5-65
laser intensity 6-23
Delayed Extraction (continued)
mass accuracy
troubleshooting 8-12
optimizing parameters 5-63
overview 1-11
parameters with primary
impact 5-63, 6-24
resolution 6-31
resolution compared to continuous
mode 1-13
resolution troubleshooting 8-10
resolution, acceptable 5-65
setting mode 5-25
troubleshooting 8-10, 8-12
Deleting text annotation 4-17
des-Arg Bradykinin, molecular
weight F-2
Detector
high current 1-23, 1-36
linear 1-23, 1-36
reflector 1-37
DHB
chemical structure and molecular
weight C-7, C-8
concentration 3-12, 3-13, 3-15
crystals 3-12, 3-13, 3-15, 3-35
initial velocity setting 5-22
laser intensity, relative 5-57
mass spectrum C-3
preparing for neutral
carbohydrates 3-12
preparing for polymers 3-15
preparing for small molecules 3-13
sample concentration 3-12, 3-13,
3-15
stability 3-12
when to use 3-3
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