Links
Thin Layer Chromatography (TLC)
Fourier Transform Infrared Spectroscopy
Federal Forensic Associates, Inc.
Video Densitometer
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| Reflectance Spectrophotometry, or Densitometry is a quantitative technique which is used to determine the relative amounts of components present in inks, or the extraction characteristics of a given written entry. This information can help determine the number of different writing instruments used to prepare a given entry or the relative age of an entry in comparison with other writings. |