Contents

17 March 2006
Vol 311, Issue 5767

About The Cover

Cover image expansion

COVER Direct analysis of plant tissue by ambient mass spectrometry. Charged microdroplets of water are sprayed onto the surface of a flower, and the released ions are vacuumed into a nearby mass spectrometer. This methodology is applicable to large biomolecules and small organics in complex natural matrices, including biological fluids and animal tissue. See page 1565. Photo: Z. Ouyang and T. A. Blake