Quadrupole mass spectrometry laser ablation

Products of Laser Ablation. The volatile products of laser ablation of a Kapton film were measured with quadrupole mass spectrometry and with emission spectroscopy using the same Kapton samples and experimental setup as for the DRIFT measurements. In the mass spectra C2H2, HCN, CO, C02, C4H2, and C6H2 could be detected, while the emission spectra showed the C2 and CN emission lines. The chemical species in the mass spectra were assigned according to the Refs [61] and [162], which used gas-phase FTIR and GC-MS for the assignment of the decomposition products. 

Pettke,T., Heinrich, C.A., Ciocan, A.C., Gunther, D. (2000) Quadrupole mass spectrometry and optical emission spectroscopy detection capabilities and representative sampling of short transient signals from laser-ablation./onma/ of Analytical Atomic Spectrometry, 15,1149-1155. 

Plotnikov,A.,Vogt,C.,Hoffmann,V.,Taschner,C.,Wetzig, K. (2001) Application of laser ablation inductively coupled plasma quadrupole mass spectrometry (LA-ICP-QMS) for depth profile analysis./owmaZ of Analytical Atomic Spectrometry, 16,1290-1295. 

Allen, L. A. (1996). Inductively coupled plasma mass spectrometry with a twin quadrupole instrument using laser ablation sample introduction and monodisperse dried microparticulate injection. Unpublished Ph.D. Thesis, Iowa State University, Ames. 

AES = atomic emission spectroscopy BPTH = l,5-bis[phenyl-(2-pyridyl)-methylene]-thiocarbonohydrazide] DPTH = l,5-bis(di-2-pyridyl)methylene thiocarbohydrazide FI = flow injection ICP = inductively coupled plasma LA = laser ablation LOD = limit of detection MIBK = methyl isobutyl ketone MS = mass spectrometry QMS = quadrupole mass spectrometry SF-MS = sector field mass spectrometry... 

Signals from laser ablation ICP-MS are transient and can vary widely over time. Therefore, a simultaneous detection system, using time-of-flight mass spectrometry [56] or a multiple detector sector-based mass spectrometer [57-59] is preferable. Quadrupole mass spectrometers can be used, with some limitations, if signals are properly acquired and processed [60]. 

Lascr-microprt)be mass speciromelers arc used for the study of solid surfaces. Ablation of the surface is accomplished with a high-power, pulsed laser, usually a Nd-YAG laser. After frequency quadrupling, the Nd-YA(i laser can produce 266-nm radiation focused to a spot as small as 0.5 pm. The power density of the radiation within this spot can be as high as 10 to 10" W/cm On ablation of the surface a small fraction of the atoms arc ionized. The ions produced are accel eraied and then analyzed, usually by limc-of-nighi mass spectrometry. In some cases laser microprobes have been combined with quadrupole ion traps and with Fourier transform mas speciromelers. Laser-microprobe tandem mass speclromeiry is also reeeiv-... 

Kylander, M.E., Weiss, D.J., Jeffries, T.E., Kober, B., Dolgopolova, A., Garcia-Sanchez, R., Coles, B.J. (2007) A rapid and reliable method for Pb isotopic analysis of peat and lichens by laser ablation-quadrupole-induc-tively coupled plasma-mass spectrometry for biomonitoring and sample screening. Analytica Chimica Acta, 582,116-124. 

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