Projects / Programmes
Development of the methods for determination of fluoride in food, organic matter and soil
| Code |
Science |
Field |
Subfield |
| 1.04.00 |
Natural sciences and mathematics |
Chemistry |
|
| Code |
Science |
Field |
| P300 |
Natural sciences and mathematics |
Analytical chemistry |
diet, organic matter, soil, fluoride, decomposition, determination, fluoride ion selective electrode, validation
Researchers (2)
| no. |
Code |
Name and surname |
Research area |
Role |
Period |
No. of publicationsNo. of publications |
| 1. |
18457 |
PhD Maja Ponikvar Svet |
Chemistry |
Researcher |
2004 - 2006 |
219 |
| 2. |
01063 |
PhD Boris Žemva |
Chemistry |
Head |
2004 - 2006 |
603 |
Organisations (1)
| no. |
Code |
Research organisation |
City |
Registration number |
No. of publicationsNo. of publications |
| 1. |
0106 |
Jožef Stefan Institute |
Ljubljana |
5051606000 |
91,628 |
Abstract
The content of fluoride in drinking water can be determined directly as a free fluoride by a fluoride ion selective electrode. On the other hand, total decomposition of the sample is prerequisite for the determination of fluoride in food and other organic matter. Total decomposition during which complex fluoride is transformed into water-soluble ionic form is a critical step of the entire analytical procedure.
Due to analytical unreliability a large part of existing data on fluoride in biological samples should be regarded by skepticism and is accordingly of limited value since only a few studies report use of certified reference materials (CRM's) as a part of the quality assurance system. Increasing awareness of food as a possible source of fluoride has accentuated the need not only to re-establish the credibility of fluoride analysis by generating accurate data but also the need for more appropriate analytical procedures.
A new approach to total decomposition and subsequent determination of total fluoride by using a fluoride ion selective electrode in food and organic matter will be developed and validated using CRM's. The content of fluoride in total diet samples of Slovenian army will be determined by the developed method what will enable to assess the daily intake of fluoride.
A method for determination of fluoride in soil will be validated. By using developed methods the contents of fluoride in vegetation and soil from fluoride "clean" and fluoride "polluted" environment will be assessed. Possible accumulation and effects of fluoride on vegetation and soil in the surrounding of fluoride releasing industry in Slovenia will be estimated.
