Non-Contact, Trace Tributyl Phosphate Vapor Analysis

Following our initial experiments using ion trap mass spectrometry and atmospheric flow tube sampling (AFT-MS) for alkylphosphonic acid detection, we have applied a similar approach to the quantitation of tributyl phosphate in solution by analysis of headspace vapor. We are pleased to present this research, performed in collaboration with Robert Ewing from Pacific Northwest National Laboratory, as an accepted publication in Talanta entitled, “Ambient Vapor Sampling and Selective Cluster Formation for the Trace Detection of Tributyl Phosphate via Atmospheric Flow Tube Mass Spectrometry.” In this article, AFT-MS is shown to successfully quantitate tributyl phosphate down to tens of ppb in solution. Furthermore, analytical selectivity and quality control accuracy was enhanced by the introduction of specific dopant molecules.

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