Fragment-free mass spectrometric analysis with jet cooling/VUV photoionization

Eyal Nir, Heinrich E. Hunziker, Mattanjah S. De Vries

Research output: Contribution to journalArticlepeer-review

50 Scopus citations


We show that it is possible to obtain fragment-free mass spectra of large molecules by a combination of laser desorption, jet cooling, and VUV single-photon photoionization. The ability to obtain parent molecular masses is particularly important for the analysis of mixtures, such as combinations of fully saturated hydrocarbons. By varying the cooling conditions, we can also achieve partial fragmentation in order to obtain further structural information. The use of different wavelengths provides additional selectivity between aromatic and aliphatic compounds.

Original languageEnglish
Pages (from-to)1674-1678
Number of pages5
JournalAnalytical Chemistry
Issue number9
StatePublished - 1 May 1999
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry


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