Since Cookss group[1,2] started to utilize natural chiral amino acids as their reference compound,more and more researchers found a great deal of chiral molecules were able to be the reference compoun
A synthesis of d15-GD adducted nonapeptide via solid-phase approach has been developed.The d15-GD peptide could be used as the isotope-labeled internal standard for LC-MS/MS detecting the BuChE-OPNA b