“Solvatochromic dyes provided a simple way to detect homeopathic potencies when viewed with electronic spectroscopy: the potencies produced repeated, consistent and reproducible rates of absorption.
Solvatochromic dyes appear to provide a simple and versatile method for the detection of homeopathic potencies. Six different solvatochromic dyes have been tested in three different solvents with and without potency present. In all cases the visible spectra of the dyes are affected by the presence of potency. Evidence has been presented which indicates potencies are interacting directly with the dyes themselves rather than through the solvent in which the dyes are dissolved. Potencies have no effect on nonsolvatochromic dyes, suggesting it is the intramolecular electron transfer feature of solvatochromic dyes which is essential in determining dye-potency interaction.”
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