The D-Torch is a revolutionary new demountable torch design with interchangeable outer tubes. Featuring a torch body with fixed alumina intermediate tube for greater robustness, in addition to a demountable outer tube and injector, the D-Torch significantly reduces torch replacement costs for the analysis of challenging sample matrices. The ceramic outer tube is of particular benefit for ICP applications where a quartz outer tube will suffer from a short lifetime. High TDS applications cause quartz to rapidly devitrify and organic solvents can cause quartz to fracture, whereas the ceramic outer tube will last years under the same conditions. The ceramic outer tube is of particular benefit for: The analysis of wear metals in engine oils, where quartz outer tubes often suffer from short lifetime. Si determinations, where quartz outer tubes often produce high background signals. Fusion samples or samples with high levels of dissolved solids which cause quartz tubes to devitrify.