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The most suitable technique for liquid ink individualization is

  • A.Reflected light examination
  • B.T. L. C
  • C.Microscopic examination
  • D.Short wave ultra violet light

Answer: B

The most suitable technique for the individualisation of liquid ink is thin layer chromatography, option B. TLC separates the dyes of an ink into spots with different Rf values, which gives a pattern that can be compared with the ink of the questioned document. Reflected light examination (A), microscopic examination (C) and short wave ultraviolet light (D) show the appearance of the ink but are less able to separate its components.

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