Systematic TLC separations, identification of cations and the determination of the limits of their identification on microcrystalline cellulose layers, incorporating glyoxal dithiosemicarbazone (H_2-GDTS) as a spray reagent have been worked out. Metal-GDTS complexes have also been separated on silica gel ‘G’ support. Detection called for no spray reagent, owing to the intense and characteristic colours of the complexes.

Glyoxal dithiosemicarbazone (H_2-GDTS) effectively enhances inorganic TLC separations and identification of cations, with no additional spray reagent needed for detection.

Paper

Glyoxal dithiosemicarbazone as a complexing and chromogenic spray reagent in inorganic TLC

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