The TSHR Total Nitrogen/Sulfur Analyzer, model NEXIS VP, is the most sensitive and reliable vertical combustion analyzer available, to measure precisely, from ultra-trace to high ppm level, simultaneous total nitrogen/sulfur concentrations in a wide range of liquids and LPG/Gas samples. The NEXIS VP model TN/TS analyzer configuration detects these substances through a uniquely high effective NEX-Z™ combustion tube design that includes high quality Ultraviolet Fluorescence (UVF) and Chemiluminescence (CLD) detectors.