The Picarro G2131-i isotope and gas concentration analyzer enables measurement flexibility for a wide variety of applications—from atmospheric and ocean science research to food and beverage origin and authenticity. It can measure δ¹³C in carbon dioxide at less than 0.1 ⁰/₀₀ precision. It can measure carbon dioxide (CO₂) and methane (CH₄) gas concentrations, simultaneously, at 200 and 50 parts-per-billion (ppb), respectively. Water (H₂O) vapor is measured in parts-per-million (ppm) precision to correct and report CO₂ and CH₄ in dry mole fractions. 

• Measured δ¹³C in CO₂ at >0.1 ⁰/₀₀ precision
• Pair with peripherals to measure δ¹³C from many sample types
• Simultaneously measure CO₂ and CH₄ gas concentrations
• Measure H₂O vapor and report dry mole fractions

Accurate analysis of ¹³C-CO₂ /CO₂ is only possible if the influences of other molecules in the sample are quantified. The G2131-i analyzer makes precise measurements of CH4 and H₂O concentrations to allow the cross-influence of these species to be quantified and corrected. The analyzer comes equipped with ChemDetect™ software, a new layer of analysis that inspects the recorded spectra to find indications of contaminating species. The G2131-i analyzer can be paired with a variety of peripherals to extend and expand functionality.

Learn More

Explore the Carbon Isotope Analysis Resource Center

Explore the Soil Gas Flux Analysis Resource Center