02949nam a2200277 4500 390947 390947 20120521d2012 y0pory50 ba eng Application of laser-induced breakdown spectroscopy to forensic science Recurso eletrónico analysis of paint samples Michael E. Sigman, Erin M. McIntee, Candice Bridge [Orlando, FL] ed. do a. 2012 1 CD-ROM 12 cm Research report submitted to the U.S. Department of Justice - Award ner. 2006-DN-BX-K251. Ficheiro de 1,22 MB em formato PDF (84 p.). Disponível também em. https://www.ncjrs.gov/pdffiles1/nij/grants/237839.pdf. Acedido a 21 de maio de 2012. Executive summary. I. Introduction. I.1 Statement of problem. I.2 Literature citations and review. I.2.1 Forensic paint analysis. I.2.2 Laser-induced breakdown spectroscopy (LIBS). II Methods. II.1 Data analysis methods. II.1.1 Multivariate Analysis of Variance (MANOVA). II.1.2 Full spectral comparisons. II.1.2.1 Parametric approaches. II.1.2.1.1 Pearson Correlation Spectral Comparison. II.1.2.1.2 Hit Quality Index (HQI). II.1.2.1.3 Distribution issues: II.1.2.2 Nonparametric approaches. II.1.2.2.1 Nonparametric permutation. II.1.2.2.2 Alternative nonparametric approaches. II.1.2.2.2.1 Spearman Rank Correlation: II.2 Experimental approach. II.2.1 X-ray fluorescence XRF. II.2.2 Laser ablation – Inductively coupled plasma – mass spectrometry (LA-ICP-MS). II.2.3 Scanning Electron Microscopy – Energy Dispersive Spectroscopy (SEM/EDS). II.2.4 Laser induced breakdown spectroscopy (LIBS). II.3 Samples analyzed. III. Results: III.1 XRF discrimination: III.1.1 ANOVA/Tukey HSD Data Analysis: III.2 SEM/EDS discrimination: III.2.1 ANOVA/Tukey HSD Data Analysis. III.2.2 SEM/EDS full spectra discrimination by student’s t-test/HQI. III.3 Laser Ablation – Inductively Coupled Plasma – Mass Spectrometry (LA-ICP-MS). III.4 LIBS discrimination. III.4.1 Laser Induced Breakdown Spectroscopy Discrimination (MANOVA). III.4.2 Laser Induced Breakdown Spectroscopy Discrimination (t-test). III.4.3 Laser Induced Breakdown Spectroscopy Discrimination (nonparametric permutation test). III.4.3.1 Nonparametric permutation discrimination of glass samples. III.4.3.2 Nonparametric permutation discrimination of paint samples. IV Conclusion: IV.1 Discussion of findings. IV.2 Implications for policy and practice. IV. 3 Implications for further research. V References.VI Dissemination of results. ANÁLISE DE TINTAS 328471 ESPECTROSCOPIA 330125 ANÁLISE LABORATORIAL 326721 CIÊNCIA FORENSE 321508 SIGMAN Michael E. 356765 MCINTEE Erin M. 356766 BRIDGE Candice 356767 Oferta 0 PJCD_200_000000000000000 2022-06-06 PJCD200 422810 PJ PJ PJ1CD200_33 PJCD200 2022-06-06 0 MO Oferta