Characterization of nanosecond micro-mixers

We have constructed two four-jet-tangential micro-mixers, one from stainless-steel to study reactions in a freeze-quench setup, instrumental-dead-time 60µs and one from glass allowing optical studies. Both mixers contain 70µm channels ending in premixing-chamber. After the premixing-chamber, the fluids enter a mixing-chamber and leaves at an orifice travelling further as a free jet, mixing-time 200 ns, jet flow 200 m/s, pressure 400 bar.