Our goal is to further improve the performance of secondary electropray ionization technique for the analysis of vapors. We are working on the detailed analysis of LFSESI:
We have developed a numerical method that describes electrospray plumes expansions:
Electrospray Plumes Expansions I
Electrospray Plumes Expansions II
As a result, we have been able to optimize the geometry, flow fields and electric fields of LFSESI.
qs=0.05lpm; Y=3mm; cv=1 ppt
This optimized device has improved the sensitivity of current SESI ionizers by a factor of x5.
Experimental performance of the optimized (LFSESI) and standard (SESI) ionizers; DEA 23fg/s