Figure 5: Anionic contents of laser-induced particles.
From: Field measurements suggest the mechanism of laser-assisted water condensation

Anions are detected in the laser-induced particles by semi-quantitative ionic chromatography of particles impacted on filters with a pore of 15 nm (a), 50 nm (b) and 1 μm (c). The curves display the current detected by the chromatograph as a function of the ion transit time, characteristic of each species, for both the particles impacted on filters, and reference conditions without laser.