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. Author manuscript; available in PMC: 2017 Mar 24.
Published in final edited form as: Methods Mol Biol. 2016;1366:131–148. doi: 10.1007/978-1-4939-3127-9_11
Mass accuracy
Electrospray survey
Attribute Value
Perform lock spray calibration Yes
Lock spray lock mass 785.8427 Da/e
Lock spray scan 10
Lock mass tolerance 0.1 Da
MSMS
Attribute Value
Perform lock spray calibration Yes
Lock spray lock mass 785.8427 Da/e
Lock spray scan 10
Lock mass tolerance 0.1 Da
Noise reduction
Electrospray survey
Attribute Value
Background subtraction type Normal
Background threshold 35%
Background polynomial 5
Perform smoothing Yes
Smoothing type Savitzky-Golay
Smoothing iterations 2
Smoothing window 3 channels
MSMS
Attribute Value
Background subtraction type Normal
Background threshold 35%
Background polynomial 5
Perform smoothing Yes
Smoothing type Savitzky-Golay
Smoothing iterations 2
Smoothing window 3 channels
Peptide filter
De-isotoping and centroiding
Electrospray survey
Attribute Value
Perform de-isotoping Yes
De-isotoping type Fast
Iterations 30
Automatic thresholds No
Threshold 3%
Minimum peak width 4 channels
Centroid top 80%
TOF resolution 10,000
NP multiplier 0.7
MSMS
Attribute Value
Perform de-isotoping Yes
De-isotoping type Fast
Iterations 30
Automatic thresholds No
Threshold 3%
Minimum peak width 4 channels
Centroid top 80%
TOF resolution 10,000
NP multiplier 0.7