title: A method to assay fluoride in foods, beverages, and diets.
abstract: Foods and beverages containing sugars, frequently consumed as snacks between meals, contribute to dental caries in different proportions depending on a number of intrinsic factors, including carbohydrate content, textural properties, and mineral composition, such as calcium, phosphate, and fluoride concentration. A method to assay fluoride in foods and beverages is described which involves [1] an acid hydrolysis at 110 degrees C in a closed vial with a valve for dispensing reagents and [2] estimation of total acid-hydrolyzed fluoride using a specific ion electrode. A number of foods, beverages, and diets were analyzed for acid-hydrolyzable and free fluoride. The simplicity of the method eliminates fluoride contamination, making the procedure accurate and reproducible in determining fluoride in foods and beverages.
authors.affiliation: Institute of Dental Research, School of Dentistry, University of Alabama, Birmingham.
authors.forename: H
authors.initials: H
authors.lastname: Lopez
authors.forename: J M
authors.initials: JM
authors.lastname: Navia
mesh_terms: D001628:Beverages / Q000032:analysis*; D001682:Biological Availability; D005459:Fluorides / Q000032:analysis*; D005504:Food Analysis; D006868:Hydrolysis; D007225:Infant Food / Q000032:analysis*
chemical_list: D005459:Fluorides