Peak scientific have introduced the NM-3G Nitrogen Gas Generator.
The NM-3G Nitrogen Generator has been specifically designed to operate LCMS manufactured by Waters Corporation, Thermo Fisher Scientific, Agilent Technologies, Shimadzu, Bruker and similar, producing the required flow rates, purities and pressures to cater for the requirements of this application.
http://www.peakscientific.com/product/NM%203G/