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Development and Validation of a Liquid Chromatography Method for Quantification of Xanthorrhizol in Roots of Iostephane heterophylla (Cav.) Benth ex Hemsl

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Roots of Iostephane heterophylla (Cav.) Benth ex Hemsl are used mainly in Mexican traditional medicine to heal skin problems. The development of a column high-performance liquid chromatography (LC)-UV detector method for the determination of xanthorrhizol, the major and active component of the roots of I. heterophylla, is described in this paper. The content of this compound was quantitatively determined employing a Symmetry C18 5 m particle size column with the isocratic mobile phase acetonitrilewater (85 + 15). The flow rate was 1.0 mL/min, and UV detection was at 230 nm. The limits of detection and quantitation were 0.2 and 0.5 g/mL, respectively. Quantities of xanthorrhizol measured by this method ranged between 1.8 to 10.94 mg/g of root of the plant in 11 different samples of I. heterophylla. Xanthorrhizol was not detected in a sample of I. madrensis, so xanthorrhizol could be used as a marker compound of I. heterophylla. The LC method described here was shown to be reliable, reproducible, and accurate.
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Document Type: Research Article

Affiliations: 1: Universidad Nacional Autnoma de Mxico, Ciudad Universitaria, Facultad de Qumica, Departamento de Farmacia, Coyoacn 04510, Mxico D.F., Mxico. 2: Jardn Botnico Exterior, Instituto de Biologa, Universidad Nacional Autnoma de Mxico, Ciudad Universitaria, Coyoacn 04510, Mxico D.F., Mxico.

Publication date: July 1, 2007

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  • The Journal of AOAC INTERNATIONAL publishes refereed papers and reviews in the fields of chemical, biological and toxicological analytical chemistry for the purpose of showcasing the most precise, accurate and sensitive methods for analysis of foods, food additives, supplements and contaminants, cosmetics, drugs, toxins, hazardous substances, pesticides, feeds, fertilizers and the environment available at that point in time. The scope of the Journal includes unpublished original research describing new analytical methods, techniques and applications; improved approaches to sampling, both in the field and the laboratory; better methods of preparing samples for analysis; collaborative studies substantiating the performance of a given method; statistical techniques for evaluating data. The Journal will also publish other articles of general interest to its audience, e.g., technical communications; cautionary notes; comments on techniques, apparatus, and reagents.
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