@article {738,
	title = {Direct determination of polycyclic aromatic hydrocarbons in solid matrices using laser desorption/laser photoionization ion trap mass spectrometry},
	journal = {Journal of the American Society for Mass Spectrometry},
	volume = {14},
	number = {6},
	year = {2003},
	note = {ISI Document Delivery No.: 684BJTimes Cited: 8Cited Reference Count: 48},
	month = {Jun},
	pages = {562-570},
	type = {Article},
	abstract = {The development and characterization of a new instrument for solid sampling which couples IR laser desorption followed by UV laser photo-ionization and analysis using an ion trap mass spectrometer has been investigated. For calibration, a new type of solid sample preparation involving activated charcoal as the solid substrate was used. This solid sample provided a steady signal for several thousand laser shots, which allowed optimization of the experimental procedure. It was found that both the IR and UV intensity and the delay between them play an important role in both the magnitude and type of signals observed. A method of gas phase accumulation with multiple laser shots was examined. Finally, this technique was demonstrated to be effective in providing direct qualitative information. for N.I.S.T. SRM 1944 river sediment sample with no sample pre-treatment. (J Am Soc Mass Spectrom 2003,14,562-570) (C) 2003 American Society for Mass Spectrometry.},
	keywords = {CONTAMINATED SOILS, ENVIRONMENT, FLUORESCENCE, GAS-CHROMATOGRAPHY, IONIZATION DETECTION, MULTIPHOTON IONIZATION, ORGANIC-SURFACE ANALYSIS, SIMULATION, SPECTROSCOPY, THERMAL-DESORPTION},
	isbn = {1044-0305},
	url = {<Go to ISI>://000183185300002},
	author = {Specht, A. A. and Blades, M. W.}
}
@article {3856,
	title = {LEED crystallographic analysis for the Rh(111)-(2x1)-O surface structure},
	journal = {Surface Science},
	volume = {360},
	number = {1-3},
	year = {1996},
	note = {ISI Document Delivery No.: UX923Times Cited: 29Cited Reference Count: 32},
	month = {Jul},
	pages = {137-143},
	type = {Article},
	abstract = {A tensor LEED analysis is reported For the Rh(111)-(2 x 1)-O surface structure in which atoms in the O overlayer chemisorb close to the regular (fcc type) three-fold hollow sites for half-monolayer coverage. The structure shows significant relaxations: for example, a buckling of about 0.07 Angstrom is indicated in the first metal layer and O appears to displace laterally by about 0.05 Angstrom. The individual O-Rh bond lengths are around 2.01 and 1.92 Angstrom to top layer Rh atoms, which bond to two and one O atoms, respectively, but the average value (1.98 Angstrom) is close to that in bulk RhO2 (1.96 Angstrom). Comparison is also made with the previously determined O-Rh bond lengths in the Rh(110)-p2mg(2 x 1) surface structure.},
	keywords = {CLOSE-PACKED SURFACE, EJECTION, ENERGY-ELECTRON-DIFFRACTION, LAYER, low energy electron diffraction, low index single crystal surfaces, OXYGEN, P(2X2)O/RH(111), RECONSTRUCTION, RELAXATIONS, RH(111), rhodium, surface relaxations, THERMAL-DESORPTION},
	isbn = {0039-6028},
	url = {<Go to ISI>://A1996UX92300022},
	author = {Wong, K. C. and Liu, W. and Mitchell, K. A. R.}
}
