Fluorine, chlorine, bromine, and sulfur can cause corrosion in many industrial processes, decrease the lifetime of many catalysts, and cause environmental pollution. The combustion IC system developed by Mitsubishi (Japan) and Thermo Fisher Scientific (USA) can be used for automated qualitative and quantitative analysis of halogens and sulfur in samples comprised of difficult matrices - intractable solids, semisolids, liquids and even gasses. Samples can be as diverse as petrochemicals, coal-based chemicals, construction materials, chemicals, polymers, and pharmaceutical intermediates and finished formulations.