The S mode determines total sulphur from a few 10’s of parts per million to high percentage levels depending on the sample type and the detection system used in the elemental analyser. The method is reliable for almost all organic and inorganic compounds and is often applied to the analysis of oils, minerals, plant material, animal tissue and soil samples. The method has none of the drawbacks of the CHNS and NCS methods so it can run larger samples. Where the S values are likely to be very low (in soils for example) it is possible to use higher sample weights, increase the gain of the instrument to achieve a better signal to noise ratio and/or switch to the more sensitive flame photometric detector (FPD).
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