Thermo Scientific Delta Ray IRIS and Delta Ray Connect IRIS among highlights at EGU 2016

Scientists can now benefit from a portable infrared spectrometer, designed to provide continuous measurement of isotope ratios and CO₂ concentrations in air and in containers.

Live demonstrations of the Thermo Scientific Delta Ray Isotope Ratio Infrared Spectrometer (IRIS) with URI Connect were conducted at The European Geosciences Union General Assembly (EGU), at Austria Center Vienna, April 17-22, Booth G17-18. Subject matter experts demonstrated the use and application of the Delta Ray IRIS series based on a number of posters presented by both customers and Thermo Fisher Scientific at the conference, including:

• On-site isotopic analysis of dissolved inorganic carbon using an isotope ratio infrared spectrometer.
• Preferential flow pathways revealed by field based stable isotope analysis of CO₂ by mid-infrared laser spectroscopy.
• Delta Ray Road Trip: Measuring ¹³C, ¹⁸O and concentration of CO₂ across Canada.
• The isotopic signature of ecosystem respiration and Eddy Covariance measurements of stable CO₂ isotopologues in a temperate beech forest.

“The demand for extending measurements of isotope ratios into the field is growing. Our transportable system addresses this need and includes full referencing schemes and workflows,” said HJ Jost, product manager, Delta Ray IRIS, Thermo Fisher Scientific, “The instrument was designed with field portability and operational simplicity in mind, so that scientists can place it right at the point of the research interest. The URI Connect interface balances the concentration of reference gases against that of the sample, targeting accuracy with minimum effort from the user.”

The Delta IRIS with URI Connect is a new solution that extends the continuous measurement of isotope ratios and concentrations of CO₂ in air to discrete samples, such as head space analysis or direct injection of small amounts of CO₂. By simultaneously detecting ¹³C and ¹⁸O, the system allows scientists to measure both isotopolgues and concentration in one step, without destroying the sample. The URI Connect system lets the user interface with samples containing as little as 80 µg of CO₂, such as in vials, syringes or bags, which can then be analyzed with the Delta Ray IRIS analyzer.

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