Mass Spectrometry of Spacecraft Contamination Using the Direct Analysis in Real-Time Ion Source

Mass spectrometry is presented as a powerful tool for the analysis of spacecraft contamination when coupled to the Direct Analysis in Real Time (DART) ionization source. DART technology is based on soft ionization and desorption using metastable helium (MSHe). This provides efficient sample introduction for the rapid analysis of polymers and bio-organic compounds. It is particularly useful to the evaluation of polymers that may outgas in the space environment. In addition, this approach provides sensitive analysis of bio-marker and organic compounds that may interfere with organic and life detection instruments on future spacecraft missions.