Lock mass
From Mass Spec Terms
| IUPAC RECOMMENDATIONS 2013 |
| Lock mass |
|---|
| Mass of an ion of known m/z value, derived from a suitable standard compound introduced into an ion source together with the sample to be analyzed, which permits real-time recalibration by correction of m/z shifts arising from instrumental drift. |
| Related Term(s): |
| Reference(s):
J. V. Olsen, L. M. F. de Godoy, G. Li, B. Macek, P. Mortensen, R. Pesch, A. Makarov, O. Lange, S. Horning, M. Mann. Mol. Cell Proteomics 4, 2010 (2005). |
| From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013. |
