Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Inside Cover: Paper Spray for Direct Analysis of Complex Mixtures Using Mass Spectrometry (Angew. Chem. Int. Ed. 5/2010)
Wet filter paper is central to a powerful new method of mass spectrometry presented by G. Cooks, Z. Ouyang et al. in their Communication on p. 877 ff. Samples can be preloaded onto the paper, added from solution, or transferred from surfaces using the paper as a wipe. Potential applications lie in quantitative analysis of whole blood from finger pricks or in surface wipe-and-analyze experiments for security applications, and in in situ analysis.