Analysis of a Molecular Beam Produced by the Spray-Jet Technique with Femtosecond Laser Mass Spectroscopy

Abstract

We previously developed a molecular beam apparatus with the spray-jet technique to produce a molecular beam of non-volatile molecules under high vacuum from sprayed mists of sample solutions. The apparatus is used in spectroscopic studies or is a means of molecular beam deposition. We analyzed the molecular beam with femtosecond laser mass spectroscopy and conventional nanosecond laser mass spectroscopy. The information obtained from both mass spectroscopy methods provided insight into non-volatile, solvent, and carrier-gas molecules in the molecular beam.

Keywords:

• femtosecond laser mass spectroscopy
• nanosecond laser mass spectroscopy
• non-volatile molecule
• spray-jet technique