Isotopic composition analyzer
作者： Hanns-Ludwig Schmidt , Ramiro Medina
DOI:
关键词: Carbon 、 Carbon monoxide 、 Nitrogen 、 Analytical chemistry 、 Oxygen 、 Mass spectrometry 、 Catalysis 、 Spectrometer 、 Hydrogen 、 Chemistry
摘要: An on-line mass spectrometric method and apparatus for the determination of isotopic composition at least oxygen, hydrogen nitrogen in a compound or mixture compounds. A contained syringe 6 is injected through injector 7 on chromatographic column 1. Compounds eluting from 1 pass into catalytic reactor 14 containing carbon are decomposed to produce monoxide, molecular nitrogen, hydrogen. These gases analyzed by an isotope-ratio spectrometer 4 so that comprised original can be determined. second 24 may provided separate monoxide before they passed 4, thereby allowing low resolution used analysis both m/e 28 daltons.
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