TY - JOUR KW - Laser ablation KW - Glasses KW - Direct solid sampling KW - Inductively coupled plasma atomic emission spectrometry KW - Preferential vaporization AU - Richard E Russo AU - Xianglei Mao AU - Wing-Tat Chan AU - M F Bryant AU - W. W Frank Kinard AB -

Laser ablation sampling is presented as an alternative to dissolution procedures for elemental analyses of prototypical glasses using inductively coupled plasma atomic emission spectrometry. These glass samples were prototypes of vitrified waste products from the Savannah River Technology Center. The samples were not translated or rotated during laser sampling, but were repetitively sampled at a single spot using a KrF excimer laser with a 10 Hz repetition rate. The time-dependent mass ablation rate was measured and is discussed. Silicon, the major element in the matrix, was used as an internal standard, and excellent precision (sr= 1–3%) was obtained. Quantitative analysis was demonstrated using known prototypical glass compositions. Preferential vaporization was investigated by comparing measured elemental ratios using a nanosecond excimer laser (λ= 248 nm) and a picosecond Nd: YAG laser (fourth harmonic, λ= 266 nm).

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UNIV HONG KONG,DEPT CHEM,HONG KONG,HONG KONG WESTINGHOUSE SAVANNAH RIVER CO,SAVANNAH RIVER TECH CTR,AIKEN,SC 29808 COLL CHARLESTON,DEPT CHEM,CHARLESTON,SC 29424

BT - Journal of Analytical Atomic Spectrometry DO - 10.1039/JA9951000295 IS - 4 LA - eng LB - Laser N1 -

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Laser ablation sampling is presented as an alternative to dissolution procedures for elemental analyses of prototypical glasses using inductively coupled plasma atomic emission spectrometry. These glass samples were prototypes of vitrified waste products from the Savannah River Technology Center. The samples were not translated or rotated during laser sampling, but were repetitively sampled at a single spot using a KrF excimer laser with a 10 Hz repetition rate. The time-dependent mass ablation rate was measured and is discussed. Silicon, the major element in the matrix, was used as an internal standard, and excellent precision (sr= 1–3%) was obtained. Quantitative analysis was demonstrated using known prototypical glass compositions. Preferential vaporization was investigated by comparing measured elemental ratios using a nanosecond excimer laser (λ= 248 nm) and a picosecond Nd: YAG laser (fourth harmonic, λ= 266 nm).

PY - 1995 SP - 295 EP - 301 ST - J. Anal. At. Spectrom. T2 - Journal of Analytical Atomic Spectrometry TI - Laser-Ablation Sampling with Inductively-Coupled Plasma-Atomic Emission-Spectrometry for the Analysis of Prototypical Glasses VL - 10 ER -