Each tube of mass spec calibration standard contains 4 purified peptides: Leu-Enkephalin, Gonadoliberin, Angiotensin I, and Neurotensin. You can conveniently dissolve the mass spec calibration peptides directly in the tube with buffer or matrix
solution and then analyze by MALDI-MS or ESI-MS. Each tube contains 10 ug of the 4 calibration peptides totaling 40 ug of peptide in each tube. Three tubes of purified peptides are sold in this product.
Peptide Calibration Standard Product Information
Molecular Weights: 555.6, 1181.6, 1295.7, 1691
Sheet & General Protocol
Monoisotopic Masses [M+H]+: 556.277, 1182.581, 1296.685, 1690.928