In a contract with the US Army, the nanospray nozzle has been developed to be a sprayer of a simulation chemical weapon agent, which is an extremely viscous polymer solution. Using similar conditions as in conventional nanospray applications, the plastic nanospray nozzle delivers a stream of viscous polymer solution to a surface of sand. To facilitate the flow of the viscous solution, the nozzle has been truncated (with a razor blade to an i.d. fo~ 80 to 100 Mm. Click “play movie” below to view the nozzle in action for this application.

Conc: 94 mg/ml, Flow rate:750 nL/min, solvent: 50/50 Aq.MeOH 2s/scan scan range: 50-500 amu
m/z: 268 = [M+H]+, M=VX
m/z: 312 = [M+H]+,
M=diisopropylaminoethanedisulfide,
a known breakdown product of VX in the standard

MS/MS spectrum of the 268 ion