Following University guidance in response to the COVID-19 threat, Harvard Center for Mass Spectrometry will not permit access to non-Harvard researchers starting on Monday, March 16th. Non-Harvard researchers may not independently use our instruments, may not drop off samples in person, and may not visit for consultations. Researchers may mail samples and consultations will be offered using Zoom. We expect this restriction to last at least until April 30. As of this writing, researchers from Harvard and the affiliate hospitals and institutions may visit our core as usual. We recognize that this change is disruptive and we will make every effort to resume business-as-usual as soon as it is deemed safe to do so. We will post on this site when these measures are no longer required.