There is disclosed an apparatus for providing an ionized analyte for mass analysis by photon desorption comprising at least one layer for contacting an analyte, and a substrate on which said layer is deposited. Upon irradiation of said apparatus, said analyte desorbs and ionizes for analysis by mass spectrometry. The layer or layers of said apparatus comprise a continuous film, a discontinuous film or any combinations thereof.


< Devices and techniques for treating glaucoma

< Systems and methods for topical treatment with nitric oxide

> Retroreflective article comprising water-borne acrylic topcoats

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