Femtosecond pulse shaping adds a new dimension to mass spectrometry.
Phase-shaped femtosecond laser pulses and mass spectrometry were implemented as a tool for improving molecular identification. We demonstrate that the specific lines in the mass spectra of several chemical warfare simulants are sensitive to the phase characteristics of the incident laser field. The deviation in the relative yield of fragment ions observed upon pulse shaping (enhancement or suppression) adds a new dimension to mass spectrometry that improves molecular identification and can be used to quantitatively analyze mixtures of isomers.
Pastirk
Igor
I
Biophotonic Solutions, Inc., Okemos, Michigan 48864, USA. pastirk@biophotonicsolutions.com
Zhu
Xin
X
Lozovoy
Vadim V
VV
Dantus
Marcos
M
D000098:Acetophenones / Q000032:analysis; D007477:Ions; D007834:Lasers; D013058:Mass Spectrometry / Q000295:instrumentation* / Q000379:methods*; D008956:Models, Chemical; D055095:Optics and Photonics; D063065:Organophosphonates / Q000032:analysis; D009991:Oscillometry; D010626:Phenylethyl Alcohol / Q000032:analysis; D017905:Phosphites / Q000032:analysis; D013997:Time Factors
D000098:Acetophenones; D007477:Ions; D063065:Organophosphonates; D017905:Phosphites; D010626:Phenylethyl Alcohol; C038699:acetophenone; C047356:dimethyl hydrogen phosphite