EMIA-Step

The HORIBA EMIA-Step is a specialized carbon and sulfur combustion analyzer incorporating stepped or staged combustion capability – the ability to heat samples in a controlled temperature sequence rather than a single high-temperature combustion event. Staged combustion is used to differentiate between chemically distinct forms of carbon and sulfur in a sample: for example, organic carbon versus carbonate carbon in geological or environmental samples, free carbon versus carbidic carbon in steels or ceramics, or elemental sulfur versus sulfate sulfur in minerals. In a conventional combustion analyzer, all carbon and sulfur forms combust together at the peak temperature, giving only total C and total S. The EMIA-Step’s stepped temperature approach allows the sample to be heated through a programmed temperature sequence; each step selectively combusts or desorbs different species, and the gases evolved at each temperature step are measured independently by NDIR detection, yielding a thermal evolution profile that provides speciated information about C and S forms rather than just total content. This capability is valuable for geological and environmental sample characterization (organic vs. inorganic carbon, sulfide vs. sulfate sulfur), quality control of ceramics and refractories (different carbon phases), and materials research involving multi-phase carbon or sulfur-containing systems. The EMIA-Step retains the analytical performance and compliance with standard combustion methods that characterize the EMIA series for total C and S determination, while adding the advanced speciation capability for research and specialized applications. NewRoad provides the HORIBA EMIA-Step in Israel for geological survey organizations, environmental laboratories, ceramics research, and materials science institutions requiring carbon and sulfur speciation by stepped combustion.