Characterization of document paper using elemental compositions determined by inductively coupled plasma mass spectrometry

Spence, Lindsay D; Baker, Anthony T.; Byrne, John P.

doi:10.1039/b001411g

Cited by 49 publications

(53 citation statements)

References 12 publications

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“…Other types of inks have been analyzed and characterized based on their elemental composition [51][52][53][54][55] and thus initially provided some insight as to the types of elements that may be found gel ink samples, with the assumption that the same raw materials are used in their respective formulations. In addition, it is unfair to only present elemental compositions of inks because in the case of a forensic document, the paper itself may provide additional discrimination potential (though that is not the work that will be presented in this chapter).…”

Section: Elemental Analysis Of Inkmentioning

confidence: 99%

“…Fairly linear calibration curves were generated from the dried picoliter drops [54], the work offers a potential quantification approach for ink analysis, provided that a matrix-matched standard can be produced. Spence et al used dissolution ICP-MS to study document paper wherein Na, Mg, Al, Mn, Sr, Y, Ba, La, and Ce (from a starting list of 23 elements) were used to discriminate 17 different paper sources (Australian document paper) by t-test at the 95% confidence interval [55].…”

Section: Elemental Analysis Of Inkmentioning

confidence: 99%

“…The initial element list was gathered by first looking through the scientific literature which detailed the elemental analysis of ink by various techniques [51][52][53][54][55].…”

Section: Element Menumentioning

confidence: 99%

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Elemental Analysis of Glass and Ink by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)

Naes¹

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Section: Elemental Analysis Of Inkmentioning

confidence: 99%

Section: Elemental Analysis Of Inkmentioning

confidence: 99%

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Elemental Analysis of Glass and Ink by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)

Naes¹

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“…In spite of the application to historical documents, forensic paper characterization has focused mainly on the measurement of physical properties, such as thickness, color, fluorescence, strength, fiber content and fiber morphology [Polk et al, 1977]. These methods are often deficient to detect differences between different brands of papers produced by the different manufacturers or to associate two sheets of paper with a high degree of certainty [Spence et al, 2000].…”

Section: Paper Manufacturingmentioning

confidence: 99%

“…Quantitative elemental analysis of the inorganic components of paper has proven to provide added discrimination [Spence et al, 2000]. The forensic usefulness of elemental analysis of paper has been documented since 1970s and relies upon the premise that, despite technological standardization in the manufacture of paper, minor variations in the chemical composition remains between and within batches due to the natural trace contaminants of raw materials, such as the pulp fiber, fillers and additives.…”

Section: Paper Manufacturingmentioning

confidence: 99%

Evaluation of the Evidential Value of the Elemental Composition of Glass, Ink and Paper by Laser-Based Micro-Spectrochemical Methods

Trejos¹

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DEDICATIONThis dissertation is dedicated to my family, especially to my husband and my mom who are my day-to-day inspiration. I have learned from you both how to be perseverant and keep believing in our dreams. I also dedicate this work to my lovely kids: Montserrat and Anthony, being your mom has been God's greatest gift and privilege. In the first part of this study, the analytical performance of LIBS and LA-ICP-MS methods was evaluated for paper, writing inks and printing inks. A total of 350 ink specimens were examined including black and blue gel inks, ballpoint inks, inkjets and toners originating from several manufacturing sources and/or batches. The paper collection set consisted of over 200 paper specimens originating from 20 different paper sources produced by 10 different plants.Micro-homogeneity studies show smaller variation of elemental compositions within a single source (i.e., sheet, pen or cartridge) than the observed variation between different sources (i.e., brands, types, batches). Significant and detectable differences in the elemental profile of the inks and paper were observed between samples originating from different sources (discrimination of 87 -100% of samples, depending on the sample set under investigation and the method applied). These results support the use of vii elemental analysis, using LA-ICP-MS and LIBS, for the examination of documents and provide additional discrimination to the currently used techniques in document examination.In the second part of this study, a direct comparison between four analytical methods (µ-XRF, solution-ICP-MS, LA-ICP-MS and LIBS) was conducted for glass analyses using interlaboratory studies. The data provided by 21 participants were used to assess the performance of the analytical methods in associating glass samples from the same source and differentiating different sources, as well as the use of different match criteria (confidence interval (±6s, ±5s, ±4s, ±3s, ±2s), modified confidence interval, t-test (sequential univariate, p=0.05 and p=0.01), t-test with Bonferroni correction (for multivariate comparisons), range overlap, and Hotelling's T 2 tests. Error rates (Type 1 and Type 2) are reported for the use of each of these match criteria and depend on the heterogeneity of the glass sources, the repeatability between analytical measurements, and the number of elements that were measured. The study provided recommendations for analytical performance-based parameters for µ-XRF and LA-ICP-MS as well as the best performing match criteria for both analytical techniques, which can be applied now by forensic glass examiners.

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Current Awareness

2000

J. Mass Spectrom.

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In order to keep subscribers up‐to‐date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of mass spectrometry. Each bibliography is divided into 11 sections: 1 Books, Reviews & Symposia; 2 Instrumental Techniques & Methods; 3 Gas Phase Ion Chemistry; 4 Biology/Biochemistry: Amino Acids, Peptides & Proteins; Carbohydrates; Lipids; Nucleic Acids; 5 Pharmacology/Toxicology; 6 Natural Products; 7 Analysis of Organic Compounds; 8 Analysis of Inorganics/Organometallics; 9 Surface Analysis; 10 Environmental Analysis; 11 Elemental Analysis. Within each section, articles are listed in alphabetical order with respect to author (4 Weeks journals ‐ Search completed at 4th. Oct. 2000)

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Characterization of document paper using elemental compositions determined by inductively coupled plasma mass spectrometry

Cited by 49 publications

References 12 publications

Elemental Analysis of Glass and Ink by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)

Elemental Analysis of Glass and Ink by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)

Evaluation of the Evidential Value of the Elemental Composition of Glass, Ink and Paper by Laser-Based Micro-Spectrochemical Methods

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