Organic contamination detection for isotopic analysis of water by laser spectroscopy.
Cody MillarKim JanzenMagali F NehemyGeoff KoehlerPedro Hervé-FernandezJeffrey J McDonnellPublished in: Rapid communications in mass spectrometry : RCM (2021)
Organic contamination caused significant errors in IRIS stable isotope results. These errors were larger during vapour analyses than during liquid IRIS analyses, and larger for methanol than ethanol contamination. The 17 O-excess method is highly sensitive for detecting narrowband (methanol) contamination error in vapour and liquid analysis modes in IRIS.