On the rapid and non-destructive approach for wood identification using ATR-FTIR spectroscopy and chemometric methods

Sharma, Vishal; Yadav, Jyoti; Kumar, Raj; Tesařová, Daniela; Ekielski, Adam; Mishra, Pawan Kumar

doi:10.1016/j.vibspec.2020.103097

Cited by 64 publications

(28 citation statements)

References 33 publications

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“…3) showed broad bands at 3100− 3600 cm − 1 and 2800− 2900 cm − 1 , which are ascribed to O -H stretching vibrations and C-H 2 stretching vibrations in methyl and methylene groups, respectively. The former is associated with alcoholic and phenolic hydroxyl groups (of cellulose, hemicellulose and lignin), which may be involved in hydrogen bonds (Sharma et al, 2020). These bands were slightly attenuated for the treated woods, which suggests that OH groups from the wood polysaccharides were obstructed by the solidified resin in the wood structure.…”

Section: Infrared Spectroscopymentioning

confidence: 97%

Improvement in mechanical, physical and biological properties of eucalyptus and pine woods by raw pine resin in situ polymerization

Acosta

Barbosa

Amico

et al. 2021

Industrial Crops and Products

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A raw pine resin, which is a cheap, renewable and easily obtainable forest resource, was used to impregnate two different fast-growing solid woods (Eucalyptus grandis Hill Maiden and Pinus elliottii Engelm) and in situ polymerized to improve their hygroscopic, chemical, morphological, mechanical, and thermogravimetric properties. Biodegradation resistance against subterranean termites and white-rot fungus was also addressed. The treatment yielded changes in colorimetric properties, dimensional stability and surface hydrophobicity. Compared to its respective untreated wood, the treated pine one presented increases within 40-50 % in ASE, whereas the treated eucalyptus wood showed negative values around -15 % in this same comparison. Increases in MOE (70 %) and MOR (50 %) were obtained for the pine wood, whereas the same properties were unaffected for the eucalyptus wood. Thermal and biological properties of both woods were also positively affected. These results were associated with the solidified raw pine resin inside the wood structure, which was confirmed by infrared spectroscopy and SEM images, especially for the pine due to its large and long tracheids, as well as its lignin content and overall composition.

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Section: Infrared Spectroscopymentioning

confidence: 97%

Improvement in mechanical, physical and biological properties of eucalyptus and pine woods by raw pine resin in situ polymerization

Acosta

Barbosa

Amico

et al. 2021

Industrial Crops and Products

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“…The IR spectroscopy is the most often used in transmission mode. However, for forensic purposes, IR reflectance spectroscopy has also been used 14–16 …”

Section: Introductionmentioning

confidence: 99%

“…However, for forensic purposes, IR reflectance spectroscopy has also been used. [14][15][16] Forensic science laboratories are often equipped with modern instrumentation using IR microprobe analysis for fiber and paint samples. IR microprobe analysis requires virtually no sample preparation and enables direct IR spectroscopic analysis of unknown mineral grains.…”

Section: Introductionmentioning

confidence: 99%

“…18,22,23 For this study, it is most important to state that IR spectroscopy coupled with attenuate total reflection accessory has been used in trace evidence analysis. 15,16 The forensics coupled with IR spectroscopy and chemometrics has been applied in discrimination of soil types using linear discriminant analysis and principal component (PC) analysis (PCA). [28][29][30] Both techniques serve for linear mapping of the data into a lower dimensional space.…”

Section: Introductionmentioning

confidence: 99%

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Classification of urban soils for forensic purposes using supervised self‐organizing maps

Idrizi

Najdoski

Kuzmanovski

2021

Journal of Chemometrics

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Due to its transferability, soil has been commonly used as evidence in criminal investigations. In this work, urban soil samples taken from five parks are subject of analysis. Infrared spectroscopy was used as experimental technique. Using this technique, a total number of 80 samples of urban soils were examined. The infrared spectra were properly pre‐processed and were further used for development of classification models based on supervised self‐organizing maps. In order to perform the variable selection and the optimization of the supervised self‐organizing maps in automated manner, genetic algorithms were employed. Using this approach, for three locations with our models, we are able to successfully predict all samples used for external validation, while for the remaining two locations, 96% of the samples, used for external validation, were successfully classified by the developed models. In addition to this, the developed models were used for examination of influence of the weather and the seasonal changes on the composition of the soil. For this purpose, 3 years after the initial soil samples were collected, additional 12 samples were analyzed. All these samples were correctly classified by the previously developed model.

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“…LDA is a supervised technique (a set of data with known classes is used to train the discriminate functions which can then classify data with unknown classes) that establishes the classification. PCA and LDA are often paired for forensic studies 24 finding use in automotive paint, [25][26][27] lipstick and other cosmetics, 18,28,29 soil and wood, [30][31][32][33][34] pen ink, 35,36 forensic anthropology, 37 paper, 38,39 glass, 40,41 and fabrics. 42,43…”

Section: Introductionmentioning

confidence: 99%

Tire Classification by Elemental Signatures Using Laser-Induced Breakdown Spectroscopy

et al. 2021

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Tire evidence is a form of trace evidence that is often overlooked in today's forensics, while frequently found at crime or accident scenes, usually in the form of skid marks. The pattern of the tire skid mark has been used before to link a tire or car to a scene, but the widespread use of anti-lock braking systems makes this an almost impossible and abandoned route of analysis. With this is mind, using the chemical profile of a tire has potential to link a car or tire back to a scene in which its trace material is found. This study shows the successful use of the elemental profile of tire rubber to classify thirty-two different samples by Laser-Induced Breakdown Spectroscopy (LIBS), analyzed by Principal Component Analysis (PCA) combined with Linear Discriminant Analysis (LDA). A classification accuracy close to 99% shows the ever-growing use of LIBS as a technique of choice for forensic analysis of tire rubber, opening the path for its use as a forensic evidence.

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On the rapid and non-destructive approach for wood identification using ATR-FTIR spectroscopy and chemometric methods

Cited by 64 publications

References 33 publications

Improvement in mechanical, physical and biological properties of eucalyptus and pine woods by raw pine resin in situ polymerization

Improvement in mechanical, physical and biological properties of eucalyptus and pine woods by raw pine resin in situ polymerization

Classification of urban soils for forensic purposes using supervised self‐organizing maps

Tire Classification by Elemental Signatures Using Laser-Induced Breakdown Spectroscopy

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