Waters-Micromass ZMD is a single quadrupole, benchtop MS detector. The ZMD detector features proven API techniques such as ESI and APCI as standard, and offers ZSpray contamination avoidance technology. Both API inlet probes are quickly and easily interchangeable without breaking vacuum. The following specifications apply: Flow rates allowed are 5-1000 ul/min (ESI) and 200-2000 ul/min (APCI). Quadrupole analyzer of mass range 2-2000 Daltons.