Reliability of wood identification using DART-TOFMS and the ForeST© database: A validation study

Price, Erin; McClure, Pamela J.; Huffman, Amanda N.; Voin, Doina; Espinoza, Edgard O.

doi:10.1016/j.fsiae.2022.100045

Cited by 6 publications

(7 citation statements)

References 14 publications

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“…Though demonstrably reliable, biomarker diagnostic ratio analysis requires extensive sample preparation, long sample run times, and meticulous manual data processing. 6–9 In fact, all available certified methods for oil identification tend to have similar time demands. 6 Thus, this presents a need for a rapid but legally defensible oil identification method that can undergo the same oil spill proficiency testing (PT) for international accreditation, as a supplement to biomarker diagnostic ratio analysis.…”

Section: Introductionmentioning

confidence: 99%

Method development for forensic oil identification by direct analysis in real time time-of-flight mass spectrometry

Tikkisetty,

Filewood,

Yan

et al. 2023

Anal. Methods

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Section: Introductionmentioning

confidence: 99%

Method development for forensic oil identification by direct analysis in real time time-of-flight mass spectrometry

Tikkisetty,

Filewood,

Yan

et al. 2023

Anal. Methods

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“…Direct Analysis in Real Time ionization coupled with time-of-flight mass spectrometry (DART-TOFMS) has become an important tool in combatting the illegal trade of timber protected by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). − A key development in this application has been the creation of the ForeST© (Forensic Spectra of Trees) database of DART mass spectra of samples from commercial sources and curated xylaria . The database contains more than 12,000 spectra comprising 1267 species encompassing 241 genera and 59 families.…”

Section: Introductionmentioning

confidence: 99%

“…Lignin is a ubiquitous component of wood; therefore, the lignin peaks in DART mass spectra are not useful for chemotaxonomic classification at the species level. In fact, the presence of lignin peaks in DART mass spectra can lead to erroneous identifications in ForeST© database searches . It can be helpful to omit the lignin peaks for that reason.…”

Section: Introductionmentioning

confidence: 99%

“…12−26 A key development in this application has been the creation of the ForeST© (Forensic Spectra of Trees) database of DART mass spectra of samples from commercial sources and curated xylaria. 25 The database contains more than 12,000 spectra comprising 1267 species encompassing 241 genera and 59 families.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In fact, the presence of lignin peaks in DART mass spectra can lead to erroneous identifications in ForeST© database searches. 25 It can be helpful to omit the lignin peaks for that reason. However, there are useful structural differences between the lignin composition that can differentiate between angiosperms (hard- wood) and gymnosperms (softwood).…”

Section: ■ Introductionmentioning

confidence: 99%

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Wood from Hardwood Angiosperms and Coniferous Gymnosperms Shows Distinctive Lignin Peaks in Direct Analysis in Real Time (DART) Mass Spectra

Cody

Espinoza

Price

et al. 2023

J. Am. Soc. Mass Spectrom.

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A data set was constructed consisting of 3021 mass spectra randomly selected from all available families in the ForeST© (Forensic Spectra of Trees) database of mass spectra for wood analyzed by Direct Analysis in Real Time ionization coupled with time-of-flight mass spectrometry (DART-TOFMS). Clear and reproducible differences were observed between the lignin peaks for hardwood angiosperms and coniferous gymnosperms, with DART-TOFMS spectra of angiosperms showing significantly higher relative abundances for peaks associated with syringyl subunits. Application of the method to processed wood samples demonstrated that these differences can be used to provide support for enforcing trade laws by accurately identifying the source of finished wood products from hardwood angiosperms and coniferous gymnosperms.

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Enhancing timber traceability via multielement and strontium isotope ratio: An example from the Eastern Alps

Aguzzoni,

Giammarchi,

Mundo

et al. 2024

Preprint

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International timber trading is subject to rigorous certification schemes that require the disclosure of essential information, including the tree species and geographic origin of the timber in question. Regrettably, the lack of readily accessible forensic tools to verify compliance has facilitated the proliferation of illegal timber trading, with dramatic consequences for ecosystems and biodiversity. The objective of this study was to investigate the potential of a multichemical approach based on the multielement and strontium isotope (87Sr/86Sr) ratio analysis combined with chemometrics to test sample recognition according to their species and geographic origin. The sampling area covered a portion of the Eastern Alpine region, which is characterised by a significant economic reliance on wood. The study focused on three representative species from local forests: Norway spruce, European larch, and Swiss stone pine. Samples were characterised from stands grown on diverse bedrock types. Our findings revealed a strikingly consistent variation in the multielement profiles across different species, thereby enabling flawless sample recognition. Considering the geographic origin, the 87Sr/86Sr ratio proved to be a pivotal parameter, by virtue of its correlation with the geo-lithological composition of the growing area. Combining the chemical markers, an accurate sample classification based on multiple decision trees was attained, even comparing forest stands grown on the same bedrock type. These findings offer novel insights into the utilisation of chemical markers in provenancing and authenticity studies, thereby enhancing the adoption of integrated approaches to counteract illegal timber trade.

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Reliability of wood identification using DART-TOFMS and the ForeST© database: A validation study

Cited by 6 publications

References 14 publications

Method development for forensic oil identification by direct analysis in real time time-of-flight mass spectrometry

Method development for forensic oil identification by direct analysis in real time time-of-flight mass spectrometry

Wood from Hardwood Angiosperms and Coniferous Gymnosperms Shows Distinctive Lignin Peaks in Direct Analysis in Real Time (DART) Mass Spectra

Enhancing timber traceability via multielement and strontium isotope ratio: An example from the Eastern Alps

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