@article{25208, keywords = {Surfaces, Deposition, Energy, Surface, Emission, Power, Behavior, Ablation, Laser, Laser ablation, Laser ablation, Spectroscopy, Analysis, Vaporization, Time, Composition, Glass, Inductively coupled plasma (icp), Inductively-coupled plasma, Mass, Mass spectrometry, Plasma, Precise, Sample, Sampling, Ablated mass, Ablation rate, Atomic emission, Atomic emission spectroscopy, Chemical analysis, Chemical analysis, Constant, Emission spectroscopy, Emission spectroscopy, Direct solid sampling, Icp-aes, Density, Energies, Solid samples, Laser ablation sampling, Laser power density, Laser-induced plasma, Area, Region, Removal}, author = {Xianglei Mao and Wing-Tat Chan and Richard E Russo}, title = {Influence of sample surface condition on chemical analysis using laser ablation inductively coupled plasma atomic emission spectroscopy}, abstract = {

The influence of sample surface condition on chemical analysis was investigated when using laser ablation sampling with inductively coupled plasma atomic emission spectroscopy (ICP-AES), The ablated mass quantity and composition were found to be significantly different from original vs, pre-ablated surfaces. The ablated mass quantity from original surfaces was much greater than that from pre-ablated surfaces, and the ablation rate (mass per unit area and time) was constant or independent of power density below 0.3 GW/cm2. For pre-ablated surfaces, the mass ablation rate follows exponential behavior in the same power density region. The measured composition of the ablated mass was found to be dependent on the surface condition and laser power density, for both original and pre-ablated surfaces. Understanding the influence of laser energy and surface conditions on mass ablation is essential for accurate and precise chemical analysis

}, year = {1997}, journal = {Applied Spectroscopy}, volume = {51}, pages = {1047-1054}, month = {07/1997}, url = {http://www.opticsinfobase.org/as/abstract.cfm?URI=as-51-7-1047}, note = {

LBNL-40372 NOT IN FILE

}, language = {eng}, }