Field-based ion generation from microscale emitters on natural and artificial objects for atmospheric pressure mass spectrometry

Pirkl, Alexander; Dreisewerd, Klaus; Yew, Joanne; König, Simone
August 2010
Analytical & Bioanalytical Chemistry;Aug2010, Vol. 397 Issue 8, p3311
Academic Journal
Field-based ion generation is described for ambient mass spectrometry. The technique allows the analysis of endogenously expressed chemicals and exogenously applied compounds directly from the cuticle of live insects in real time. Cuticular hairs serve as electric field-enhancing structures and play a key role in ion generation. Artificial emitters such as graphite whiskers or sharp metal tips replicate this effect. [Figure not available: see fulltext.]


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