Electrospray ionization from a gap with adjustable width.

  title={Electrospray ionization from a gap with adjustable width.},
  author={Patrik Ek and Johan Sj{\"o}dahl and Johan Roeraade},
  journal={Rapid communications in mass spectrometry : RCM},
  volume={20 21},
In this paper, we present a new concept for electrospray ionization mass spectrometry, where the sample is applied in a gap which is formed between the edges of two triangular-shaped tips. The size of the spray orifice can be changed by varying the gap width. The tips were fabricated from polyethylene terephthalate film with a thickness of 36 microm. To improve the wetting of the gap and sample confinement, the edges of the tips forming the gap were hydrophilized by means of silicon dioxide… CONTINUE READING