As one of leading analytical instrument manufacturers, YL Instrument Co., Ltd. has produced reliable and superior chromatographs for more than 25 years through dedicated research and development of chromatograph technologies in Republic of Korea. YL supplies Gas Chromatograph (GC), Gas Chromatograph Mass Spectrometer (GC/MS), High Performance Liquid Chromatograph (HPLC), Liquid Chromatograph Mass Spectrometer (LC/MS) and software for chromatograph and mass spectrometer. YL also provides laboratory Water Purification System (WPS), Gas generators and FT-IR spectrometer.