Analysis Title: Isotope Analysis for Liquids and Solids
Instrumentation: Flash 2000 HT Plus CNSOH (Organic Elemental Analyzer)/ConFlo IV/Delta V Advantage Isotope Ratio MS
Theory of Operation:
• Isotope-ratio mass spectrometry (IRMS) is a specialization of mass spectrometry, in which mass spectrometric methods are used to measure the relative abundance of stable (non-radioactive) isotopes in a given sample.
• Coupled with the Flash 2000 HT Plus and ConFlo IV, the Delta V Advantage Isotope Ratio MS can measure the isotopic ratios of a complex mixture of gases after they have been separated and then converted into simple gases.
• For carbon/sulfur isotopic analysis, the analysis requires the bulk combustion of the sample followed by separation of products, which are then sent to the isotope ratio mass spectrometer for ionization, separation, and detection.
• For hydrogen/oxygen isotopic analysis, the analysis depends on the bulk pyrolysis of the sample followed by separation of products, which are then sent to the isotope ratio mass spectrometer for ionization, separation, and detection.
Analytical Procedure:
Weigh sample in a tin capsule.
Squash the capsule using tweezers until it becomes a cube and no air is present inside.
Place the capsule in the auto sampler.
Run the method.