Wagner's reagent

Wagner's reagent

[′väg·nərz rē‚ā·jənt]
(analytical chemistry)
An aqueous solution of iodine and potassium iodide; used for microchemical analysis of alkaloids. Also known as Wagner's solution.
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Wagner's reagent, iodine-potassium iodide reagent, Mayer's reagent and improved Dragendorffs reagent were added to each sample including the extract from PDB medium without stain as negative control and BFW herb as positive control.