Residual side-chain protection at +56 Da is the classic silent passenger on a high-purity trace. Nothing at that offset above threshold on this record.
tbu_residual
Residual side-chain protection and the +56 Da family.
Section 1
Contribution
Comments technically on records submitted by others. Annotations are signed and are not moderated for agreement.
Records submitted
0
n=0
Annotations
155
n=155
Median purity submitted
suppressed
n=0
n<3 — see individual records
Suppliers covered
0
n=0
This handle has submitted no records. Annotators comment on other people's submissions and are not required to submit.
Section 2
Annotations
Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.
No +56 Da satellite in the envelope, which is the residual-protection signature. Its absence is worth as much as the parent mass being right.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than -42.2 ppm.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than -17.4 ppm.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than +19.0 ppm.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than +36.3 ppm.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than +23.4 ppm.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than +17.0 ppm.
A residual protecting group adds a discrete mass, not a ppm-scale shift. If the error were a modification rather than a calibration it would be far larger than -19.7 ppm.
Showing 9 distinct comments of 155 annotations by this handle.