LCMS

The United States Army is seeking a liquid chromatography mass spectrometer (LCMS) instrument. The instrument must have a paired configuration of liquid chromatography and mass spectrometer, with all items manufactured and serviced by the same company. The instrument should be capable of performing both qualitative and quantitative analysis on a sample in a single run, with a dual ion source that can provide both electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) to the same sample. The instrument must also include an autotuning function, a system check, and a 1-year warranty on parts and labor. Some key features of the instrument include: • Dual ion source with ESI and APCI • Desolvation capillary that can be removed and replaced without breaking vacuum • Detector with an off-axis, high energy conversion dynode coupled with a discrete multistage active film electron multiplier • Autotuning function that optimizes positive and negative ion modes, scan speeds, mass axis calibration, sensitivity, and mass resolution • System check to provide essential information on the status of the instrument • Scan speed of 15,000 u/sec in 0.1u steps without reducing scan mass range • Mass range of 2-2000 m/z to enable analysis of a wide range of analytes