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Stable isotope analysis of white paints and likelihood ratios

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Stable isotope analysis of white paints and likelihood ratios. / Farmer, Nicola; Meier-Augenstein, Wolfram; Lucy, David.
In: Science and Justice, Vol. 49, No. 2, 06.2009, p. 114-119.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Farmer, N, Meier-Augenstein, W & Lucy, D 2009, 'Stable isotope analysis of white paints and likelihood ratios', Science and Justice, vol. 49, no. 2, pp. 114-119. https://doi.org/10.1016/j.scijus.2009.02.003

APA

Farmer, N., Meier-Augenstein, W., & Lucy, D. (2009). Stable isotope analysis of white paints and likelihood ratios. Science and Justice, 49(2), 114-119. https://doi.org/10.1016/j.scijus.2009.02.003

Vancouver

Farmer N, Meier-Augenstein W, Lucy D. Stable isotope analysis of white paints and likelihood ratios. Science and Justice. 2009 Jun;49(2):114-119. doi: 10.1016/j.scijus.2009.02.003

Author

Farmer, Nicola ; Meier-Augenstein, Wolfram ; Lucy, David. / Stable isotope analysis of white paints and likelihood ratios. In: Science and Justice. 2009 ; Vol. 49, No. 2. pp. 114-119.

Bibtex

@article{3a4b567916d44e03b9aa6a373baf3e66,
title = "Stable isotope analysis of white paints and likelihood ratios",
abstract = "Architectural paints are commonly found as trace evidence at scenes of crime. Currently the most widely used technique for the analysis of architectural paints is Fourier Transformed Infra-Red Spectroscopy (FTIR). There are, however, limitations to the forensic analysis of white paints, and the ability to discriminate between samples.Isotope ratio mass spectrometry (IRMS) has been investigated as a potential tool for the analysis of architectural white paints, where no preparation of samples prior to analysis is required. When stable isotope profiles (SIPs) are compared, there appears to be no relationship between paints from the same manufacturer, or between paints of the same type. Unlike existing techniques, IRMS does not differentiate resin samples solely on the basis of modifier or oil-type, but exploits additional factors linked to samples such as geo-location where oils added to alkyd formulations were grown. In combination with the use of likelihood ratios, IRMS shows potential, with a false positive rate of 2.6% from a total of 1275 comparisons.",
keywords = "Bayesian, Isotope ratio mass spectrometry, Likelihood ratio , Paint",
author = "Nicola Farmer and Wolfram Meier-Augenstein and David Lucy",
year = "2009",
month = jun,
doi = "10.1016/j.scijus.2009.02.003",
language = "English",
volume = "49",
pages = "114--119",
journal = "Science and Justice",
issn = "1876-4452",
publisher = "Forensic Science Society",
number = "2",

}

RIS

TY - JOUR

T1 - Stable isotope analysis of white paints and likelihood ratios

AU - Farmer, Nicola

AU - Meier-Augenstein, Wolfram

AU - Lucy, David

PY - 2009/6

Y1 - 2009/6

N2 - Architectural paints are commonly found as trace evidence at scenes of crime. Currently the most widely used technique for the analysis of architectural paints is Fourier Transformed Infra-Red Spectroscopy (FTIR). There are, however, limitations to the forensic analysis of white paints, and the ability to discriminate between samples.Isotope ratio mass spectrometry (IRMS) has been investigated as a potential tool for the analysis of architectural white paints, where no preparation of samples prior to analysis is required. When stable isotope profiles (SIPs) are compared, there appears to be no relationship between paints from the same manufacturer, or between paints of the same type. Unlike existing techniques, IRMS does not differentiate resin samples solely on the basis of modifier or oil-type, but exploits additional factors linked to samples such as geo-location where oils added to alkyd formulations were grown. In combination with the use of likelihood ratios, IRMS shows potential, with a false positive rate of 2.6% from a total of 1275 comparisons.

AB - Architectural paints are commonly found as trace evidence at scenes of crime. Currently the most widely used technique for the analysis of architectural paints is Fourier Transformed Infra-Red Spectroscopy (FTIR). There are, however, limitations to the forensic analysis of white paints, and the ability to discriminate between samples.Isotope ratio mass spectrometry (IRMS) has been investigated as a potential tool for the analysis of architectural white paints, where no preparation of samples prior to analysis is required. When stable isotope profiles (SIPs) are compared, there appears to be no relationship between paints from the same manufacturer, or between paints of the same type. Unlike existing techniques, IRMS does not differentiate resin samples solely on the basis of modifier or oil-type, but exploits additional factors linked to samples such as geo-location where oils added to alkyd formulations were grown. In combination with the use of likelihood ratios, IRMS shows potential, with a false positive rate of 2.6% from a total of 1275 comparisons.

KW - Bayesian

KW - Isotope ratio mass spectrometry

KW - Likelihood ratio

KW - Paint

U2 - 10.1016/j.scijus.2009.02.003

DO - 10.1016/j.scijus.2009.02.003

M3 - Journal article

VL - 49

SP - 114

EP - 119

JO - Science and Justice

JF - Science and Justice

SN - 1876-4452

IS - 2

ER -