ELEMENTAL ANALYSER

The invention relates to elemental analysers and, in particular, but not exclusively, organic elemental analysers and isotope ratio mass spectrometry (IRMS) elemental analyzers. An analysis system foranalysing the constituents of a sample of material, the system comprising: a reference supply conduit (2) for supplying a source of a first gas (70a); a carrier supply conduit (4) for supplying a source of the first (70a) or a second gas (70b); first (30a) and second (30b) reactors; a first auto-sampler (20a) for providing one or more samples of material; a second auto-sampler (20a) for providingone or more samples of material; a heat conducting detector (10) used for recognizing relative conductance of gas in each channel and provided with a first channel (15) and a second channel (13). Thesystem is characterized by further comprising valve systems (80, 100). 本发明涉及元素分析仪，并且具体地而非排他地涉及有机元素分析仪和同位素比质谱(IRMS)元素分析仪。种用于分析材料样品的成分的分析系统，所述系统包括：用于供应第气体(70a)源的参考供应导管(2)；用于供应所述第(70a)或第二气体(70b)源的载体供应导管(4)；第(30a)和第二(30b)反应器；用于提供种