TY - JOUR KW - Energy KW - Environment KW - Gas KW - Performance KW - Emission KW - Pulse KW - Power KW - Ablation KW - Laser KW - Laser ablation KW - Laser ablation KW - Intensities KW - Intensity KW - Beam KW - E KW - Mass KW - Mass spectrometry KW - Ablated mass KW - Cu KW - Laser parameters KW - Line KW - Parameters KW - Properties KW - Property KW - England KW - Excimer KW - Excimer laser KW - Icp-aes KW - Emission spectrometry KW - Emission spectrometry KW - Ga KW - Line-intensities KW - Analyte emission KW - Inductively coupled plasma atomic emission spectrometry KW - Ablated material KW - Density KW - Fluorescence KW - Duration KW - Energies KW - Order KW - Pulse duration KW - Laser beam KW - Analytical performance KW - Microanalysis KW - Light KW - Ambient KW - Excimer laser KW - Excimer laser ablation KW - Excimer laser ablation KW - Enhancement KW - He KW - Ambient gas KW - Basic investigations KW - Controlled-atmosphere KW - Inductively coupled plasma-atomic emission spectrometry KW - Laser ablation inductively coupled plasma atomic emission spectrometry KW - Plumes AU - Xianglei Mao AU - Oleg V Borisov AU - Richard E Russo AB -

Analytical performance of laser ablation inductively coupled plasma-atomic emission spectrometry (ICP-AES) depends critically on the interaction between the laser light and the sample. The analyte emission line intensity in ICP-AES depends on the quantity of mass ablated. The effect of laser parameters (wavelength, pulse duration, and power density) was investigated for increasing the quantity of ablated mass. For fixed laser beam energy, the ablated mass can change 2 to 3 orders of magnitude by changing the laser beam spot size on the sample. The ablated mass quantity also depends on laser pulse duration and wavelength; and on ambient gas in the sample chamber. The shorter the pulse duration and wavelength, the higher the quantity of ablated mass. By using He in the chamber, the amount of mass increases by a factor of 2 for 30 ns excimer laser ablation and by an order of magnitude for ps-laser ablation. (C) 1998 Elsevier Science B.V. All rights reserved

AD -

Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

AN - 102 BT - Spectrochimica Acta Part B-Atomic Spectroscopy C2 - LBNL-41609 LA - eng LB - Laser N1 -

LBNL-41609 NOT IN FILE

N2 -

Analytical performance of laser ablation inductively coupled plasma-atomic emission spectrometry (ICP-AES) depends critically on the interaction between the laser light and the sample. The analyte emission line intensity in ICP-AES depends on the quantity of mass ablated. The effect of laser parameters (wavelength, pulse duration, and power density) was investigated for increasing the quantity of ablated mass. For fixed laser beam energy, the ablated mass can change 2 to 3 orders of magnitude by changing the laser beam spot size on the sample. The ablated mass quantity also depends on laser pulse duration and wavelength; and on ambient gas in the sample chamber. The shorter the pulse duration and wavelength, the higher the quantity of ablated mass. By using He in the chamber, the amount of mass increases by a factor of 2 for 30 ns excimer laser ablation and by an order of magnitude for ps-laser ablation. (C) 1998 Elsevier Science B.V. All rights reserved

PY - 1998 SP - 731 EP - 739 T2 - Spectrochimica Acta Part B-Atomic Spectroscopy TI - Enhancements in laser ablation inductively coupled plasma-atomic emission spectrometry based on laser properties and ambient environment VL - 53 ER -