A method and apparatus for the quantitative determination of very small percentages of sulphur in sample analysis is carried out by means of sample combustion in a helium current temporarily enriched with oxygen, subsequent catalytic oxidation and reduction of the combustion gases, gas chromatographic...http://www.google.fr/patents/US4293308?utm_source=gb-gplus-shareBrevet US4293308 - Method and apparatus for the analysis of sulphur contents in samples
Method and apparatus for the analysis of sulphur contents in samples
