A quantitative differentiation method for plastic bags by wide angle X-ray diffraction for tracing the source of illegal drugs

Causin, Valerio; Marega, Carla; Carresi, Pietro; Schiavone, Sergio; Marigo, Antonio

doi:10.1016/j.forsciint.2006.06.029

Cited by 24 publications

(15 citation statements)

References 20 publications

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“…This corresponds to an overall DP of the sequence of the techniques equal to 100% and 98% for black and blue inks, respectively. Knowledge of the DP of an analysis is of great help to the forensic scientist when it comes to interpreting results (27,28). It has been shown that FT‐IR spectroscopy is particularly interesting as a complementary technique to TLC and UV/VIS spectroscopy because FT‐IR spectra are due to resins and solvents, not just due to colorant components.…”

Section: Resultsmentioning

confidence: 99%

The Discrimination Potential of Ultraviolet‐Visible Spectrophotometry, Thin Layer Chromatography, and Fourier Transform Infrared Spectroscopy for the Forensic Analysis of Black and Blue Ballpoint Inks

Causin¹,

Casamassima²,

Marega³

et al. 2008

Journal of Forensic Sciences

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The knowledge of the discriminating power of analytical techniques used for the differentiation of writing inks can be useful when interpreting results. Ultraviolet-visible (UV-VIS) spectrophotometry, thin layer chromatography (TLC), and diffuse reflectance Fourier transform infrared spectroscopy (FT-IR) were used to examine a population of 21 black and 12 blue ballpoint writing inks. Based on corroborative results of these methods, the discrimination power for UV-VIS, TLC, and FT-IR was determined to be 100% and 98% for the black and blue inks, respectively. Generally, TLC and UV-VIS can be used to differentiate the colorant components (i.e., dyes and some pigments) found in inks. As FT-IR can be utilized to identify some of the noncolorant components, it was determined to be an excellent complementary technique that can be implemented into an analytical scheme for ink analysis.

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Section: Resultsmentioning

confidence: 99%

The Discrimination Potential of Ultraviolet‐Visible Spectrophotometry, Thin Layer Chromatography, and Fourier Transform Infrared Spectroscopy for the Forensic Analysis of Black and Blue Ballpoint Inks

Causin¹,

Casamassima²,

Marega³

et al. 2008

Journal of Forensic Sciences

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“…To confer to paper the desired physical-mechanical properties, cellulose is added with a variety of inorganic fillers, the quantity and nature of which are characteristic of each manufacturer. XRD allows to investigate both the polymeric matrix and the inorganic formulation [13,14] of paper composition. On one hand, it is possible to assess the degree of order, i.e.…”

Section: Introductionmentioning

confidence: 99%

Forensic differentiation of paper by X-ray diffraction and infrared spectroscopy

Causin

Marega

Marigo

et al. 2010

Forensic Science International

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100

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“…Emily Cook characterized drugs in the parcels using energy dispersive X-ray diffraction (EDXRD) [2]. Although some literatures related to the case of detecting and identifying drugs [3][4][5][6][7][8][9][10][11], identifying the hidden drugs in body via the energy dispersive X-ray diffraction (EDXRD) and Coherence Function are rarely concerned.…”

Section: Introductionmentioning

confidence: 99%

Identification of Heroin Covered by Simulation Skin Using Energy Dispersive X-ray Diffraction and Coherence Function

Zhang

Chang

et al. 2010

2010 International Conference on Electrical and Control Engineering

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An inspection technique based on energy dispersive X-ray diffraction (EDXRD) has been developed to provide chemically specific detection of samples. Implementing this technique and coupling with appropriate analysis algorithm provide specific material identification. Profile analysis has been performed using the Coherence Function. The Results suggest that it is feasible to recognize heroin covered by simulation skin through coherence function analysis method. Meanwhile, the coherence coefficient can also be made as criterion of characteristic signal recognization. Thus, heroin in the body may be identified automatically through this kind of technique.

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A quantitative differentiation method for plastic bags by wide angle X-ray diffraction for tracing the source of illegal drugs

Cited by 24 publications

References 20 publications

The Discrimination Potential of Ultraviolet‐Visible Spectrophotometry, Thin Layer Chromatography, and Fourier Transform Infrared Spectroscopy for the Forensic Analysis of Black and Blue Ballpoint Inks

The Discrimination Potential of Ultraviolet‐Visible Spectrophotometry, Thin Layer Chromatography, and Fourier Transform Infrared Spectroscopy for the Forensic Analysis of Black and Blue Ballpoint Inks

Forensic differentiation of paper by X-ray diffraction and infrared spectroscopy

Identification of Heroin Covered by Simulation Skin Using Energy Dispersive X-ray Diffraction and Coherence Function

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