CH4 Isotope Analyzer

Dual-laser analyzer for direct spectroscopic measurement of methane isotopes without chemical separation.

• Status: Active
• Country: USA
• Isotopic: Yes
• Type of measurable elements: Light stable isotopes (C, N, S, O, H)
• Measurable isotopes/elements: CH₄, δ¹³CH₄, δCH₃D
• Dynamic range : 2–20 ppm
• Precision : Continuous flow (air): 1 s — CH₄ 0.2 ppb, δ¹³CH₄ 1 ‰, δCH₃D 30 ‰; 100 s — CH₄ 0.05 ppb, δ¹³CH₄ 0.25 ‰, δCH₃D 8 ‰. Discrete samples: 125 mL (3 min) — δ¹³CH₄ 0.3 ‰, δCH₃D 10 ‰; 10×125 mL (30 min) — δ¹³CH₄ 0.1 ‰, δCH₃D 3 ‰.
• Cooling system : Thermoelectric chiller
• Vacuum system : Vacuum pump (customer specified)
• Gas supply: Flushing optics with CO₂-free gas recommended
• Power Requirements and Consumption : 250–500 W; 120/240 V; 50/60 Hz (without pump)
• Environmental requirements : Operating −20 to 40 °C
• Dimensions and Weight: 56 × 77 × 64 cm; 75 kg