We present a discrete droplet sample introduction system for inductively coupled plasma mass spectrometry (ICPMS). It is based on a cheap and disposable microfluidic chip that generates highly monodisperse droplets in a size range of 40−60 µm at frequencies from 90 to 7,000 Hz.
Verboket, P. E., Borovinskaya, O., Meyer, N., Günther, D., Dittrich, P. S. A Microfluidic Chip for ICPMS Sample Introduction. J. Vis. Exp. (97), e52525, doi:10.3791/52525 (2015).