TY - JOUR KW - Lead KW - Comparison KW - Performance KW - Measurements KW - Measurement KW - Standards KW - Calibration KW - Ablation KW - Laser KW - Laser ablation KW - Laser ablation KW - Analysis KW - Icp-ms KW - Icp-ms KW - Icp-ms KW - Inductively coupled plasma (icp) KW - Inductively coupled plasma mass spectrometry KW - Inductively-coupled plasma KW - Mass KW - Mass spectrometry KW - Mass spectrometry KW - Plasma KW - Plasma mass spectrometry KW - Plasma-mass spectrometry KW - Sample KW - Samples KW - Spectrometry KW - Alloy KW - Alloys KW - Linear KW - Femtosecond KW - Nanosecond KW - 266 nm KW - Nm KW - Correlation KW - Ablation icp-ms KW - Accuracy KW - Nist KW - Precision KW - Series KW - Standard KW - Femtosecond laser KW - Laser ablation icp-ms KW - Coefficient KW - Nanosecond laser KW - Sensitivity KW - Technology KW - Wavelength AU - Jhanis J Gonzalez AU - Chunyi Liu AU - Xianglei Mao AU - Richard E Russo AB -

Femtosecond and nanosecond laser ablation was studied for the analysis of alloy samples by inductively coupled plasma mass spectrometry (ICP-MS). Two series of alloy standards from the National Institute of Standards and Technologies (NIST) were used to establish calibration graphs (NIST 625-629 and NIST 1737-1741). The quality of calibration (correlation coefficient, sensitivity and confidence intervals) was compared for ablation with the 266 nm wavelength from each laser. Accuracy and precision were established from these calibration graphs by determining the lead (208Pb) concentration when two of the standards were used as unknown samples (NIST 627 and 1738). Absolute quantitative measurements were obtained without using internal standards. A comparison between the calibration graphs established with the two series of standards individually and combined was performed. The use of the two series of standards combined increased the linear dynamic range of concentration as well as the accuracy and precision of analysis. Improved performance was measured using femtosecond laser pulses.

AN - 160 BT - Journal of Analytical Atomic Spectrometry C2 - LBNL-55784 LA - eng LB - Laser N1 -

LBNL-55784 NOT IN FILE

N2 -

Femtosecond and nanosecond laser ablation was studied for the analysis of alloy samples by inductively coupled plasma mass spectrometry (ICP-MS). Two series of alloy standards from the National Institute of Standards and Technologies (NIST) were used to establish calibration graphs (NIST 625-629 and NIST 1737-1741). The quality of calibration (correlation coefficient, sensitivity and confidence intervals) was compared for ablation with the 266 nm wavelength from each laser. Accuracy and precision were established from these calibration graphs by determining the lead (208Pb) concentration when two of the standards were used as unknown samples (NIST 627 and 1738). Absolute quantitative measurements were obtained without using internal standards. A comparison between the calibration graphs established with the two series of standards individually and combined was performed. The use of the two series of standards combined increased the linear dynamic range of concentration as well as the accuracy and precision of analysis. Improved performance was measured using femtosecond laser pulses.

PY - 2004 SP - 1165 EP - 1168 T2 - Journal of Analytical Atomic Spectrometry TI - UV-femtosecond laser ablation-ICP-MS for analysis of alloys samples VL - 19 ER -