Table 1: Carbon monoxide amount fraction results based on pulsed QCLAS, cw-QCLAS, and CRDS (CALOS setup) compared to the gravimetric reference value; expanded uncertainties with .

/μmol/molU( )/μmol/mol *D/μmol/mol#U(D)/μmol/mol

Grav. reference99.880.68
Intrapulse QCLAS93.79.0−6.189.03
cw-QCLAS96.84.8−3.084.85
CRDS (CALOS setup)97.75.2−2.185.24

* .
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