Picarro CRDS is a rugged, compact, and field-deployable system that measures concentration and isotope ratios. The four primary analytical measurements of the instrument are: concentration of 12CO2, 12CH4, 13C-CO2, and 13C-CH4 with a resolution in parts per billion. Picarro Analyzers use time-based, optical absorption spectroscopy of target gases to determine concentration. They are based on wavelength-scanned cavity ring-down spectroscopy WS−CRDS, a technology in which light re-circulates many times through the sample, creating a long effective path length for the light to interact with the sample, enabling detection sensitivity in a compact and rugged instrument. The samples used in this instruments could be gas, liquid or solid. The Picarro measures δ13C in CO2 and CH4 at the same time in atmospheric concentration or connected to a CO2 generation module for carbonates/DIC analysis.

These modules are:



Combustion Module

The Coriolis® µ, is a microbial air sampler specifically designed for the quantification and detection of biological particles such as bacteria, spores and pollen.  Particles are collected and concentrated in a liquid sample allowing to analyze air samples using the methodologies available for the characterization of microbes from aquatic environments including PCR and flow cytometry.


Liaison™ Interface Module

Universal Interface for BSIA, for combustion and DIC.


AutoMate Prep Device

An automatic preparation system for acidification of solid carbonates and DIC in water. Fully automated d13C analysis when coupled with Picarro’s LIAISON interface Shipboard, field, and laboratory automated analysis of carbon isotopes of solid carbonate and DIC.


Small Sample Isotope Module 2 SSIM2

Enables the introduction of small volume discrete gas samples to Picarro's isotopic carbon and greenhouse gas analyzers from bags, flasks, or chambers.