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    The requirement of identical burial conditions means that fluoride dating works best when it is applied within a single site with little variation in soil chemistry.Many different techniques can be used to measure bone fluoride content, but measurement by ion selective electrode is the easiest and simplest method available today.We require at least 0.1 gram of bone simply for handling convenience.The actual measurements will only consume about 15 mg. Schurr Director, Fluoride Dating Service Center Department of Anthropology University of Notre Dame Notre Dame, IN 46556 USA Phone: (219) 631-7638 FAX: (219) 631-8209 Email: Mark. Fluoride dating works best when bones of similar density are compared.Therefore, it is rarely possible to mix results from skeletal elements with widely differing densities (i.e., femur cortical bone versus vertebral fragments), or to compare juveniles with adults, or to compare bones from very large or very small mammals.A calibration curve can be produced by measuring standard solutions of known fluoride concentration.

    It has been applied to sites ranging from very old to very recent (for example, the famous Piltdown specimens contained both), and with bones that range from partially fossilized to less than a thousand years old.In most cases, we recommend a pilot project using samples of known chronology to evaluate the effectiveness of fluoride dating on your samples before starting a large-scale project.We will be happy to consult with you to develop a project custom tailored to your needs.This covers cleaning the sample, preparing it for analysis, making three replicate measurements on each specimen, calculation of the fluoride content, and entry of data into a spreadsheet.Statistical evaluation of the data and consulting reports are available on request.

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