Remote sampling mass spectrometry for dry samples: Sheath-flow probe electrospray ionization (PESI) using a gel-loading tip inserted with an acupuncture needle.
Dilshadbek T UsmanovKhatam B AshurovSatoshi NinomiyaDilshadbek UsmanovHiroshi WadaHiroshi NakanoMasaya MatsumuraSachiyo Sanada-MorimuraHiroshi NonamiPublished in: Rapid communications in mass spectrometry : RCM (2018)
Because of its simplicity and versatility, sheath-flow PESI is a promising technique for on-site and nondestructive profile analysis of dry samples with bulky and complicated shapes, with a spatial resolution of ~0.3 mm.