The Comparison of Nanogram Quantities of Ink Using Visible Microspectrometry

Laing, D.K.; Isaacs, M.D.J.

doi:10.1016/s0015-7368(83)72225-5

Cited by 18 publications

(4 citation statements)

References 5 publications

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“…Inks for ballpoint pens are very popular and widely employed and so they are very frequently encountered in questioned document examinations. Many authors have proposed techniques, methods, and protocols to carry out analyses of such samples (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13), but just a few have focused on the use of Fourier transform infrared (FT-IR) spectroscopy (14)(15)(16). Common examination techniques, such as thin layer chromatography (TLC), infrared luminescence, infrared reflectance, and visualization of inks in the ultraviolet (UV), visible (VIS), and near infrared (via filters and cameras) (17,18), compare questioned inks mainly on the basis of their color or dyestuff content.…”

mentioning

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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mentioning

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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show abstract

“…It can also be used in reectance mode, which has been recommended since it is non-destructive. 1,[16][17][18] 1.3. Evaluation of the evidential value of MSP-Vis spectra Analytical methods return some output which is related to the chemistry of the specimen being examined.…”

Section: Colour Analysismentioning

confidence: 99%

The evidential value of microspectrophotometry measurements made for pen inks

et al. 2013

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“…Visible Spectra have been measured for common bail-point and fiber-tip inks using a visible microspectrophotometer. Comparison of these spectra provided a high degree of discrimination between similarity colored inks (495). Ink writing on photographic paper has been analyzed by TLC (496).…”

Section: Trace Evidencementioning

confidence: 99%