Ultraviolet absorptive densitometry

Sherma, J. Incarvito, CD. Analysis of tablets and caplets containing ketoprofen by normal- and reversed-phase HPTLC with ultraviolet absorption densitometry on preadsorbent plates. Acta Chromatogr. 1997, 7, 124—128. 

DiGregorio, D. Sherma, J. Analysis of the active ingredient magnesium salicylate in analgesic tablets by HPTLC with ultraviolet absorption densitometry. J. Planar Chromatogr.-Mod. TLC 1999,12, 230-232. 

TLC/scanning densitometry is a useful tool for the identification of the target compounds on a TLC plate, because the combined methods can separate and then directly measure ultraviolet-visible absorption spectra of the compounds without the laborious and time-consuming procedures described above. In this paper, we deal with the identification of synthetic and natural colors in foods using TLC/scanning densitometry. 

DENSITOMETRY. Quantification of a zone directly on the layer with an instrument that measures color, absorption of ultraviolet light, fluorescence, or radioactivity. 

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