Parameter: isotope_error

Overview

Allows the searching of neighboring isotope peak masses for poorly resolve precursors. Up to three alternative isotope peak masses will be searched in addition to the presumed precursor peak mass to correct for errors in monoisotopic precursor peak identification.

Syntax

[Number]

Values

• 0 = Off
• 1 = first isotope peak offset
• 2 = both first and second isotope peak offsets
• 3 = upto and including the third istope peak offset

Versions

1.5.0 - present

Example

To search presumed monoisotopic precursor mass and one additional isotope peak mass:

isotope_error = 1