obtain precursor mass from mzML

• Reporter: (Anonymous)
• 소유자: (None)
• Type: Support Request
• Status: Open
• Component: (None)
• MileStone: (None)
• Priority: 5 - Medium
• Severity: 7
• Resolution: None
• File: None

Details Reply

There is a software which export mzML with MS level as 2 which has isolationWindow and activation element and lacks selectedIonList element in precursor element.

SelectedIonList may not be suitable for some experiment (e.g. SWATH). So, I think following step should added in mzML reader. 1. If selectedIonList is exist, obtain precursor ion mass from selectedIon subelement.

(if multiple ions are listed_{, I thinks precursor ion with largest m/z is suitable as representative precursor ion mass, since some analysis plug-in use precursor ion mass as max ion mass of data.)}

2. if there is not selectedIon element, obtain precursor ion mass from cvParam of MS:1000827 (or 1000829 (upper offset)) in isolationWindow element.

Ticket History (1/1 Histories)

2015-04-01 13:16 Updated by: None

• New Ticket "obtain precursor mass from mzML" created