HP Data Explorer 4 manual 381

Peak Detection and Labeling Troubleshooting

Table 9-12 Charge State and Isotope Determination Troubleshooting—Mariner

Only (Continued)

Symptom	Possible Cause	Action
Known isotope not labeled	Charge State peak labels	Turn on Charge State
with charge state	disabled	peak labels. See
		Section 3.5.2, Setting
		Chromatogram
		and Spectrum Peak
		Labels.
	Max Charge State	Set Max Charge State
	parameter set too low.	correctly. See “Peak
	See example in “Max	Processing parameters
	Charge State set too low”	(spectrum data only)” on
	on page 3-33.	page 3-26.
	Peak List Filtering is	Disable Peak List
	enabled, with Charge	Filtering. See “Filtering
	State filter enabled and	the spectrum peak list” on
	set too low	page 3-42.
	Minimum Intensity set too	Set Minimum Intensity
	high to detect other	correctly. See “Advanced
	isotope peaks. See	Settings (spectrum data
	example in “Effect of	only)” on page 3-28.	9
	Minimum Intensity” on
	page 3-36.
	Filter width set too high to	Set Filter Width correctly.
	determine other isotope	See “Advanced Settings
	peaks	(spectrum data only)” on
		page 3-28.

Data Explorer™ Software User’s Guide 9-19