Delta V™ Series

Need the flexibility to perform all isotope ratio mass spectrometry (IRMS) applications in a single analyzer? Thermo Scientific™ Delta V™ IRMS systems combine outstanding sensitivity with excellent linearity and stability to tackle applications as diverse as δ13C analysis of PAHs in soil, 15N/14N monitoring in chlorophyll derivatives, and detection of honey adulterants. Delta V systems can be equipped with a wide range of sample preparation devices and inlets, including preconcentrators, elemental analyzers, GC interfaces, LC interfaces, and continuous flow inlets, to ensure your instrument system is perfectly suited to your application

Outstanding sensitivity

  • Sensitivities up to 800 molecules per CO2 ion in dual-inlet mode and 1100 molecules per ion in continuous-flow mode
  • Fiber optic signal transmission eliminates ground loops and other sources of electronic noise

  • Versatility to tackle almost any application

  • Up to 10 collectors in a wide range of configurations, supporting all isotope ratio MS applications in the mass range up to m/z 96
  • Simultaneous mass range up to ±25%
  • Available preconcentrators, elemental analyzers, GC interfaces, LC interfaces, and continuous flow inlets
  • On-line H2 capability
  • Upgrade path from Delta V Advantage system to Delta V Plus system

  • Highly robust and reliable design

  • Monolithic analyzer with fixed alignment of all ion optical components, including the electromagnet, ensures unprecedented reliability and robustness
  • Integrated signal amplifiers and digitizers eliminate connections for greater reliability
  • Fixed-position ion optics require no alignment during installation or maintenance
  • Optimized pumping strategy enables single-stage turbo pumping for all normal continuous-flow applications
  • Comprehensive, automated diagnostics are provided for analyzing performance

  • Compact and user-friendly design

  • Small footprint requires less lab space
  • Space for on-line peripheral on top
  • Dual inlet, μ-molume and multiport are inside, out of the way
  • Continuous flow interfaces can be controlled from the front panel
  • All pumps are located internally for less clutter and noise


  • 253™ Series

    Utilize the new gold standard in IRMS. The new Thermo Scientific™ 253 Plus™ yet again redefines high performance for isotope ratio mass spectrometry. It builds on the robustness, linearity, and sensitivity only available in the Thermo Scientific 10 kV IRMS technology. Technical innovations for the 253 Plus improve sample utilization, stability, background and signal-to-noise resulting in ultimate precision on smallest sample sizes

    Get the highest sensitivity and performance

  • “Extra bright” 10 kV EI ion source enables highest sensitivity and linearity in IRMS
  • All-metal sealed ion source and analyzer with gold gaskets
  • The only IRMS with variable conductance (VISC)
  • Analytical dynamic range greater than 107
  • Hydrogen continuous flow capability