<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xianglei Mao</style></author><author><style face="normal" font="default" size="100%">Richard E. Russo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Optimization and calibration of laser ablation inductively coupled plasma atomic emission spectrometry by measuring vertical spatial intensity profiles</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Analytical Atomic Spectrometry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">ablated mass</style></keyword><keyword><style  face="normal" font="default" size="100%">ablation</style></keyword><keyword><style  face="normal" font="default" size="100%">alloy</style></keyword><keyword><style  face="normal" font="default" size="100%">atomic emission</style></keyword><keyword><style  face="normal" font="default" size="100%">atomic-emission</style></keyword><keyword><style  face="normal" font="default" size="100%">atomic-emission-spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">brass</style></keyword><keyword><style  face="normal" font="default" size="100%">calibration</style></keyword><keyword><style  face="normal" font="default" size="100%">composition</style></keyword><keyword><style  face="normal" font="default" size="100%">density</style></keyword><keyword><style  face="normal" font="default" size="100%">electrothermal vaporization</style></keyword><keyword><style  face="normal" font="default" size="100%">elemental analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">emission</style></keyword><keyword><style  face="normal" font="default" size="100%">emission spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">emission-spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">england</style></keyword><keyword><style  face="normal" font="default" size="100%">flow</style></keyword><keyword><style  face="normal" font="default" size="100%">ga</style></keyword><keyword><style  face="normal" font="default" size="100%">gas</style></keyword><keyword><style  face="normal" font="default" size="100%">icp</style></keyword><keyword><style  face="normal" font="default" size="100%">icp-aes</style></keyword><keyword><style  face="normal" font="default" size="100%">inductively coupled plasma</style></keyword><keyword><style  face="normal" font="default" size="100%">inductively coupled plasma atomic emission spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">inductively-coupled-plasma</style></keyword><keyword><style  face="normal" font="default" size="100%">intensities</style></keyword><keyword><style  face="normal" font="default" size="100%">intensity</style></keyword><keyword><style  face="normal" font="default" size="100%">l</style></keyword><keyword><style  face="normal" font="default" size="100%">laser</style></keyword><keyword><style  face="normal" font="default" size="100%">laser ablation</style></keyword><keyword><style  face="normal" font="default" size="100%">laser ablation sampling</style></keyword><keyword><style  face="normal" font="default" size="100%">laser-ablation</style></keyword><keyword><style  face="normal" font="default" size="100%">laser-pulses</style></keyword><keyword><style  face="normal" font="default" size="100%">liquid</style></keyword><keyword><style  face="normal" font="default" size="100%">mass</style></keyword><keyword><style  face="normal" font="default" size="100%">mass-spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">matrix</style></keyword><keyword><style  face="normal" font="default" size="100%">nanosecond</style></keyword><keyword><style  face="normal" font="default" size="100%">nebulization</style></keyword><keyword><style  face="normal" font="default" size="100%">optimization</style></keyword><keyword><style  face="normal" font="default" size="100%">picosecond</style></keyword><keyword><style  face="normal" font="default" size="100%">picosecond laser</style></keyword><keyword><style  face="normal" font="default" size="100%">plasma</style></keyword><keyword><style  face="normal" font="default" size="100%">power</style></keyword><keyword><style  face="normal" font="default" size="100%">profile</style></keyword><keyword><style  face="normal" font="default" size="100%">profiles</style></keyword><keyword><style  face="normal" font="default" size="100%">pulse</style></keyword><keyword><style  face="normal" font="default" size="100%">pulses</style></keyword><keyword><style  face="normal" font="default" size="100%">rates</style></keyword><keyword><style  face="normal" font="default" size="100%">ratio</style></keyword><keyword><style  face="normal" font="default" size="100%">ratios</style></keyword><keyword><style  face="normal" font="default" size="100%">region</style></keyword><keyword><style  face="normal" font="default" size="100%">samples</style></keyword><keyword><style  face="normal" font="default" size="100%">sampling</style></keyword><keyword><style  face="normal" font="default" size="100%">science</style></keyword><keyword><style  face="normal" font="default" size="100%">solution</style></keyword><keyword><style  face="normal" font="default" size="100%">spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">standard</style></keyword><keyword><style  face="normal" font="default" size="100%">standards</style></keyword><keyword><style  face="normal" font="default" size="100%">system</style></keyword><keyword><style  face="normal" font="default" size="100%">time</style></keyword><keyword><style  face="normal" font="default" size="100%">transport</style></keyword><keyword><style  face="normal" font="default" size="100%">uv</style></keyword><keyword><style  face="normal" font="default" size="100%">values</style></keyword><keyword><style  face="normal" font="default" size="100%">vertical spatial profile</style></keyword><keyword><style  face="normal" font="default" size="100%">water</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1997</style></year></dates><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">177-182</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Vertical spatial emission intensity profiles for ICP-AES were measured to optimize and calibrate laser ablation sampling. Laser ablation sampling and laser ablation plus liquid nebulization sampling were studied. The position of maximum ICP emission intensity above the rf load coil changes with gas flow rate for both cases, with the maximum position shifting to higher regions in the plasma at higher flow rates. The maximum emission intensity occurs at a flow rate of approximately 0.2-0.31 min(-1) and at approximately 5-10 mm above the load coil, which are significantly different to the values normally employed for liquid nebulization. In addition, by measuring the spatial emission profiles for laser ablation and nebulization sampling, solutions can be used as standards to calibrate the composition of the laser ablated mass. Calibrated Zn:Cu ratios were measured using UV nanosecond and picosecond laser pulses. Stoichiometric laser ablation sampling of a brass alloy was achieved only by using UV picosecond laser pulses at high power density</style></abstract><accession-num><style face="normal" font="default" size="100%">81</style></accession-num><notes><style face="normal" font="default" size="100%">LBNL-40165 NOT IN FILE</style></notes><custom2><style face="normal" font="default" size="100%">LBNL-40165</style></custom2><label><style face="normal" font="default" size="100%">Laser</style></label></record></records></xml>