@article {2609,
	title = {A laser desorption-electron impact ionization ion trap mass spectrometer for real-time analysis of single atmospheric particles},
	journal = {International Journal of Mass Spectrometry},
	volume = {281},
	number = {3},
	year = {2009},
	note = {ISI Document Delivery No.: 426SSTimes Cited: 3Cited Reference Count: 73Simpson, E. A. Campuzano-Jost, P. Hanna, S. J. Robb, D. B. Hepburn, J. H. Blades, M. W. Bertram, A. K.},
	month = {Apr},
	pages = {140-149},
	type = {Article},
	abstract = {A novel aerosol ion trap mass spectrometer combining pulsed IR laser desorption with electron impact (EI) ionization for single particle studies is described. The strengths of this instrument include a two-step desorption and ionization process to minimize matrix effects; electron impact ionization, a universal and well-characterized ionization technique; vaporization and ionization inside the ion trap to improve sensitivity; and an ion trap mass spectrometer for MSn experiments. The instrument has been used for mass spectral identification of laboratory generated pure aerosols in the 600 nm-1.1 mu m geometric diameter range of a variety of aromatic and aliphatic compounds, as well as for tandem mass spectrometry studies (up to MS3) of single caffeine particles. We investigate the effect of various operational parameters on the mass spectrum and fragmentation patterns. The single particle detection limit of the instrument was found to be a 325 nm geometric diameter particle (8.7 x 10(7) molecules or 22 fg) for 2,4-dihydroxybenzoic acid. Lower single particle detection limits are predicted to be attainable by modifying the El pulse. The use of laser desorption-electron impact (LD-EI) in an ion trap is a promising technique for determining the size and chemical composition of single aerosol particles in real time. (C) 2009 Elsevier B.V. All rights reserved.},
	keywords = {AERODYNAMIC LENSES, Aerosol mass spectrometry, AEROSOL-PARTICLES, CHEMICAL-ANALYSIS, CONTROLLED DIMENSIONS, Electron impact ionization, ENVIRONMENTAL PARTICLES, INVERSE FOURIER-TRANSFORM, LENS-NOZZLE SYSTEM, NUMERICAL CHARACTERIZATION, ORGANIC AEROSOLS, Particle laser, Single particle analysis, THERMAL VAPORIZATION, vaporization},
	isbn = {1387-3806},
	url = {<Go to ISI>://000264728600006},
	author = {Simpson, E. A. and Campuzano-Jost, P. and Hanna, S. J. and Robb, D. B. and Hepburn, J. H. and Blades, M. W. and Bertram, A. K.}
}
@article {7259,
	title = {TEMPORAL EMISSION AND ABSORPTION CHARACTERISTICS OF SILVER, LEAD AND MANGANESE IN FURNACE ATOMIZATION PLASMA EXCITATION SPECTROMETRY},
	journal = {Journal of Analytical Atomic Spectrometry},
	volume = {7},
	number = {7},
	year = {1992},
	note = {ISI Document Delivery No.: JY532Times Cited: 15Cited Reference Count: 37},
	month = {Oct},
	pages = {1039-1046},
	type = {Article},
	abstract = {The temporal behaviour of the signal measured for Ag, Pb and Mn in furnace atomization plasma excitation spectrometry was studied using atomic emission and atomic absorption spectrometry. Analyte was deposited both on the wall and on the r.f. electrode with and without the r.f. power applied. Analyte condensation on the r.f. electrode is observed when no plasma is formed. When the plasma is formed inside the furnace it heats the electrode such that, for Ag and Pb, condensation is not observed except for large amounts of analyte. For Ag and Mn, the appearance temperatures and peak temperatures are not significantly affected by the plasma relative to the response obtained using a graphite furnace. For Pb, appearance and peak temperatures are shifted significantly earlier. For Pb, atom formation may be effected by the presence of CO in the gas phase generated from oxidation of the graphite furnace wall and electrode. The role of carbon in atom formation was studied by depositing the sample on both tungsten and graphite electrodes.},
	keywords = {ASCORBIC-ACID, ATOMIC-ABSORPTION, DOUBLE PEAKS, ELECTROTHERMAL ATOMIZATION, FAPES, FURNACE ATOMIZATION PLASMA EXCITATION SPECTROMETRY, GRAPHITE FURNACE, GRAPHITE-FURNACE, LEAD AND MANGANESE SIGNALS, MECHANISMS, silver, SURFACE, TEMPERATURE, vaporization},
	isbn = {0267-9477},
	url = {<Go to ISI>://A1992JY53200002},
	author = {Hettipathirana, T. D. and Blades, M. W.}
}
