Peak detection (continued) Noise Threshold, calculated

automatically for chromatogram data 3-21,3-68

overview 3-2

Peak Processing parameters, spectrum 3-16,3-26

peak start and end, displaying 3-55,3-58

peaks do not appear in spectrum 9-17

process that occurs during 3-67proteins 3-6

ranges, overlapping 3-5regions, setting

chromatogram 3-19,3-20regions, setting spectrum 3-28resetting Basic settings 3-18spectrum 3-68troubleshooting 9-14

use same settings for all traces 3-21,3-25

Peak detection parameters, chromatogram

description 3-19setting 3-11,3-19

Peak detection parameters, spectrum Advanced 3-28

Basic 3-22

global, description 3-22global, setting 3-13

individual detection ranges, setting for 3-30

local, description 3-28local, setting 3-28Peak Processing 3-26

Peak detection, Mariner data see also Peak detection default settings 3-71noise detected as peaks 3-7strategy for 3-6troubleshooting 3-6

Peak detection, resolution-based see also Peak detection default resolution 3-6,3-24description 3-3

enabling 3-23

Filter Width value used 3-3formula used to calculate number

of data points 3-4

overriding 3-10,3-14Peak detection, Voyager data

see also Peak detection complex digests 7-18default settings 3-71deisotoping to aid in peak

detection 3-9

high mass peaks not detected 3-9improving by baseline correcting, noise filtering, or

smoothing 3-8noise detected as peaks 3-9partially resolved peaks not

detected 3-10,7-11peaks of interest not detected 3-9PSD 8-11

strategy for 3-8troubleshooting 3-9

Peak integration, see Integration Peak labels

see also Peak labels, charge state see also Peak labels, filtering see also Peak labels, Mass

Difference

45degree angle 3-55,3-58amino acid C-5

apex 3-56

applying user labels from LBC and LBS files 3-65

area, chromatogram 3-55area, spectrum 3-56,3-58base peak mass 3-55,3-56baseline, changing line width 1-26baseline, displaying 3-55,3-58

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Data Explorer Software User’s Guide Index-19