A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics
Condom residues may be encountered in forensic investigations as traces in sexual assault or rape cases. Casework studies have shown the value of distinguishing condom residues from other types of personal products used by women. However, up to now, there has been no investigation of their chemical...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
ELSEVIER SCI LTD
2021
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/86566 |
| _version_ | 1848764847829811200 |
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| author | Burnier, Céline Coulson, Sally Massonnet, Geneviève Pitts, Kari Sauzier, Georgina Lewis, Simon |
| author_facet | Burnier, Céline Coulson, Sally Massonnet, Geneviève Pitts, Kari Sauzier, Georgina Lewis, Simon |
| author_sort | Burnier, Céline |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Condom residues may be encountered in forensic investigations as traces in sexual assault or rape cases. Casework studies have shown the value of distinguishing condom residues from other types of personal products used by women. However, up to now, there has been no investigation of their chemical variability within an international context. This work employed attenuated total reflectance Fourier transform infrared spectroscopy with chemometrics to provide objective characterisation of condom lubricants and personal hygiene products from the international market. 166 samples were obtained covering five major classes of products likely to be used by women. Principal component analysis distinguished most major classes based on their spectral profiles, with subsequent support vector machine models yielding discrimination accuracies over 90%. A two-step approach was subsequently developed and enabled both classification and a discrimination accuracy of 100%. This could provide greater confidence in chemical discrimination of residues from these products when conducting investigations and help assess the origin of the chemical profile obtained. Further testing using three validation sets produced an identification accuracy of 100% for generic classes, which may allow investigative leads to be more readily obtained from recovered evidence. |
| first_indexed | 2025-11-14T11:25:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-86566 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:25:52Z |
| publishDate | 2021 |
| publisher | ELSEVIER SCI LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-865662021-12-03T05:46:27Z A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics Burnier, Céline Coulson, Sally Massonnet, Geneviève Pitts, Kari Sauzier, Georgina Lewis, Simon Science & Technology Life Sciences & Biomedicine Medicine, Legal Pathology Legal Medicine Silicone Lubricants Glycerine International market Chemometrics ATR-FTIR TIME DISCRIMINATION IDENTIFICATION CLASSIFICATION SPECTRA SCIENCE PAINTS TRACES Condom residues may be encountered in forensic investigations as traces in sexual assault or rape cases. Casework studies have shown the value of distinguishing condom residues from other types of personal products used by women. However, up to now, there has been no investigation of their chemical variability within an international context. This work employed attenuated total reflectance Fourier transform infrared spectroscopy with chemometrics to provide objective characterisation of condom lubricants and personal hygiene products from the international market. 166 samples were obtained covering five major classes of products likely to be used by women. Principal component analysis distinguished most major classes based on their spectral profiles, with subsequent support vector machine models yielding discrimination accuracies over 90%. A two-step approach was subsequently developed and enabled both classification and a discrimination accuracy of 100%. This could provide greater confidence in chemical discrimination of residues from these products when conducting investigations and help assess the origin of the chemical profile obtained. Further testing using three validation sets produced an identification accuracy of 100% for generic classes, which may allow investigative leads to be more readily obtained from recovered evidence. 2021 Journal Article http://hdl.handle.net/20.500.11937/86566 10.1016/j.scijus.2021.01.005 English http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER SCI LTD fulltext |
| spellingShingle | Science & Technology Life Sciences & Biomedicine Medicine, Legal Pathology Legal Medicine Silicone Lubricants Glycerine International market Chemometrics ATR-FTIR TIME DISCRIMINATION IDENTIFICATION CLASSIFICATION SPECTRA SCIENCE PAINTS TRACES Burnier, Céline Coulson, Sally Massonnet, Geneviève Pitts, Kari Sauzier, Georgina Lewis, Simon A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics |
| title | A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics |
| title_full | A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics |
| title_fullStr | A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics |
| title_full_unstemmed | A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics |
| title_short | A forensic international market survey of condom lubricants and personal hygiene products using ATR-FTIR coupled to chemometrics |
| title_sort | forensic international market survey of condom lubricants and personal hygiene products using atr-ftir coupled to chemometrics |
| topic | Science & Technology Life Sciences & Biomedicine Medicine, Legal Pathology Legal Medicine Silicone Lubricants Glycerine International market Chemometrics ATR-FTIR TIME DISCRIMINATION IDENTIFICATION CLASSIFICATION SPECTRA SCIENCE PAINTS TRACES |
| url | http://hdl.handle.net/20.500.11937/86566 |