253 Ultra – Ultra High Resolution IRMS

Overcome conventional gas isotope ratio mass spectrometry (IRMS) limitations and realize an uncompromised view of your analytes. Ultra-high resolution helps uncover the isotopic anatomy of molecules and revolutionizes the field of clumped and site-specific isotope analysis.

The Thermo Scientific™ Ultra™ HR-IRMS sets a new standard in advanced gas isotope ratio measurements, paving the way forward to exciting and unprecedented scientific discoveries in atmospheric sciences, climate research, petroleum geochemistry, noble gas applications, and beyond.


As a powerful and flexible tool that is designed to fit into IRMS laboratories, the Ultra HR-IRMS enables the exploration of novel isotopic tracers through interference-free measurements, and paves the way towards exciting and innovative scientific discoveries.

Ultimate abundance sensitivity

The variable collector array on the Ultra HR-IRMS instrument covers a dynamic range of signal intensity (>10 orders of magnitude) ranging from collection of the more abundant ion beams in Faraday cups to single ion counting of very rare ion species. Very small signals can be analyzed with the axial secondary electron multiplier, which is equipped with our unique RPQ retardation lens for ultimate abundance sensitivity.

Modular concept

The Ultra HR-IRMS includes two dual viscous flow inlet systems for handling up to 3 reference gases together with the sample. Based on our modular dual inlet design each dual inlet can be exchanged as required to avoid cross contamination depending on the sample types that are being analyzed.

יצרן: Thermo Scientific

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