Mass spectrometry calibration kit for routine testing
QCAL is specifically designed to:
- Assess and optimize instrument resolution
- Test the linearity of signal detection
- Assess peptide modification such as deamidation, methionine oxidation and modification of lysine residues
- Evaluate peptide separation by reversed-phase chromatography
- Compare proteomics data within and between laboratories
QCAL - peptide mix, digested, lyophilized
QCAL is a MS calibration standard that is built from 22 peptides, ranging from ~ 410- 3100 Da and is designed to provide standards for peptide separation by reversed-phase chromatography, to facilitate the assessment and optimisation of instrument resolution and to evaluate the linearity of signal detection in different MS instruments, including MALDI-ToF, ESI MS and FTICR. QCAL also includes peptides containing amino acid residues subject to modification (oxidation of methionine, deamidation of gln/asn) and modification of lysine residues by guanidination, allowing the routine monitoring of these processes. For more information, see the original publication.