Bismarck, ND. North Dakota Crime Lab recently installed a PMNG membrane nitrogen generator to supply nitrogen to their LCMS. Compressed Gas Technologies Inc. supplied the nitrogen generator as well as the feed air compressor package along with a desiccant air dryer which provides clean, dry, instrument air for the lab. CGT PMNG membrane nitrogen generators are ideally suited for LCMS applications. The North Dakota Crime Laboratory provides scientific support to the state’s criminal justice system through the analysis, identification, and comparison of physical evidence used in the investigation and prosecution of criminal offenses.