@article{25184,
  keywords = {Deposition, Temperature, Measurements, Measurement, USA, Surface, Ablation, Laser, Laser ablation, Laser ablation, Vaporization, Oxide, Time, Beam, Ca, E, Element, Fractionation, Glass, Glasses, Icp-ms, Inductively coupled plasma (icp), Inductively coupled plasma mass spectrometry, Inductively-coupled plasma, Mass, Mass spectrometer, Mass spectrometry, Mass spectrometer, Mass spectrometry, Plasma, Plasma mass spectrometry, Plasma-mass spectrometry, Sample, Sampling, Spectrometer, Spectrometry, Lasers, Ratio, Single, Crater, Lam-icp-ms, Nd:yag, Elements, Ratios, 266 nm, Nd:yag laser, Nm, Correlation, Laser ablation sampling, Laser beam, Melting, 213 nm, Nist, Wavelength, Crater geometry, Depth, Microanalysis, Nd, Wavelengths, Yag, Glass samples, Elemental fractionation, Geochronology, Irradiance, Laser wavelength, Laser-wavelength, Pb/u, Temperatures, Zircon},
  author = {Haichen Liu and Oleg V Borisov and Xianglei Mao and Stephen Shuttleworth and Richard E Russo},
  title = {Pb/U fractionation during Nd : YAG 213 nm and 266 nm laser ablation sampling with inductively coupled plasma mass spectrometry},
  abstract = {<p>Elemental fractionation during laser ablation sampling was investigated by measuring Pb/U ratios in NIST 610 synthetic glass. Two Nd:YAG lasers with wavelengths of 213 and 266 nm were used to ablate the sample into an inductively coupled plasma mass spectrometer. Pb/U fractionation was observed to be similar for both laser wavelengths, and dependent on the irradiance. For representative Pb/U measurements, the necessary laser irradiance should be &gt;0.6 GW/cm<sup>2</sup>. However, if the laser beam is initially focused close to the sample surface, fractionation increases and is influenced by the formation of a crater during repetitive pulsing at a single sample location. As the ratio of crater depth to radius increases, plasma sampling and/or an effective irradiance decrease could cause additional fractionation. A good correlation was found between the fractionation of 14 elements in NIST 610 glass and the logarithms of their oxide melting temperatures.</p>},
  year = {2000},
  journal = {Applied Spectroscopy},
  volume = {54},
  number = {10},
  pages = {1435-1442},
  month = {10/2000},
  language = {eng},
}