Instrumentation ESS Laboratory maintains all equipment necessary to perform testing in compliance with Federal and State Regulations. A summary of our major instrumentation is provided in the table below. INSTRUMENTATION TYPE NUMBER Semi-Volatile Gas Chromatograph/Mass Spectrometer (GC/MS) 3 Volatile Gas Chromatograph/Mass Spectrometers with Archon Auto Samplers (GC/MS) 4 Gas Chromatograph with FID/PID detector (GC) 1 Gas Chromatograph with ECD detectors (GC) 5 Gas Chromatograph with FID detectors (GC) 3 Ion Chromatograph (IC) 1 High Pressure Liquid Chromatography (HPLC) 1 Inductively Coupled Plasma Spectrophotometer (ICP) 2 Mercury Cold Vapor Spectrophotometer (CVAA) 1 Graphite Furnace Atomic Absorption Spectrophotometer (GFAAS) 1 Wet Chemistry Auto Analyzer 2 Automated Soxhlet Extractor 4 Block Digestors 5 Midi Distillation Unit 2 Gel Permeation Chromatography (GPC) 1 Microwave Digestion Unit 1 Spectrophotometers 2 ESS Laboratory also maintains an array of other laboratory instrumentation necessary to perform classical Wet Chemistry Tests