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PICARRO G2301 Spectrometer   

Description

The analyser is a wavelength-scanned laser-based Cavity Ring Down Spectrometer (CRDS) spectrometer. This is an MNF procurement. Manufactured by Picarro, USA. The air is partially dried with a refrigerated dryer (5oC) to avoid potential condensation in the sample lines, valve and instrument. Measurements are extrapolated to dry air mole fractions. Calibrations are conducted pre and post each voyage and at a monthly interval for extended voyages. Calibrations are conducted in-situ with three calibrated air standards. An automated daily reference gas sample is also conducted

Purpose

The Picarro G2301-i atmospheric trace gas analyzer measures carbon dioxide (CO2), methane (CH4) and carbon13 in air whilst the Piccaro G2308 measures N2O and CH4.

Operations

Make and model Picarro G2301

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