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Revista Brasileira de Farmacognosia
Print version ISSN 0102-695X
BIANCALANA, Gilberto Rubens and NASCIMENTO, Marcos Cortez. Proposition of analytical methods for tinctures and mixtures: statistical valuation. Rev. bras. farmacogn. [online]. 1989, vol.2-3-4, pp. 13-28. ISSN 0102-695X. http://dx.doi.org/10.1590/S0102-695X1989000100002.
To propose a new analytical methodology applied to homeopathy, and its consequent statistical valuation, the autors studied its applicability to a mixture of ten tinctures in equal parts of the following plants: Archangelica officinalis L; Matricaria chamomile L; Drymis granatensis L; Mentha piperita L; Peumus boldus Molina; Cassia medica; Cassia augustifolia Vahl; Maytenus ilicifolia Martius; Artemisa absinthium L. and Coriandrum sativum L. all of them with therapeutic activity proved (6,7,8,9,10) and prepared from standards, in distinct periods, during five consecutive years. The calculated statistical values permitted to establish the following limits form proposed methods: a) chloroform alkaline residue: form 0.203 to 0.387%; b) hydrochloride acid residue added to the chloroform extract: from 0.016 to 0.072%; c) pH: 6.39 to 6.80; d) Total acidity: from 0.048 to 0.112%.
Keywords : tincture; average deviation; histogram; chloroform alcaline residue.