1 H-NMR with Multivariate Analysis for Automobile Lubricant Comparison
| Autor: | Siwon Kim, Dong-kye Lee, Changshin Yoon, Suhkmann Kim, Dahye Yoon |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Automotive engine
Engineering business.industry 010401 analytical chemistry Mechanical engineering Industrial Oils 01 natural sciences Automotive engineering 0104 chemical sciences Pathology and Forensic Medicine 03 medical and health sciences 0302 clinical medicine Genetics 030216 legal & forensic medicine Lubricant business |
| Zdroj: | Journal of Forensic Sciences. 62:1033-1036 |
| ISSN: | 0022-1198 |
| Popis: | Identification of suspected automobile-related lubricants could provide valuable information in forensic cases. We examined that automobile lubricants might exhibit the chemometric characteristics to their individual usages. To compare the degree of clustering in the plots, we co-plotted general industrial oils that were highly dissimilar with automobile lubricants in additive compositions. 1 H-NMR spectroscopy was used with multivariate statistics as a tool for grouping, clustering, and identification of automobile lubricants in laboratory conditions. We analyzed automobile lubricants including automobile engine oils, automobile transmission oils, automobile gear oils, and motorcycle oils. In contrast to the general industrial oils, automobile lubricants showed relatively high tendencies of clustering to their usages. Our pilot study demonstrated that the comparison of known and questioned samples to their usages might be possible in forensic fields. |
| Databáze: | OpenAIRE |
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