In memoriam Chris de Koster

With great sadness we announce that Prof. Dr. Chris de Koster has passed away after a long illness. With his passing we lose an exceptional person. The mass spec community also loses one of the Dutch experts in the field of biomacromolecules and MS. We will keep warm memories of Chris’s contributions, both scientific and social during the various NVMS meetings. On behalf of the board and the members of the NVMS, we wish family, friends and colleagues a lot of strength in dealing with this loss.