## Abstract A shallow water model with linear time‐dependent dispersive waves in an unbounded domain is considered. The domain is truncated with artificial boundaries ℬ︁ where a sequence of high‐order non‐reflecting boundary conditions (NRBCs) proposed by Higdon are applied. Methods devised by Givo
Application of Total Reflection XRF to Elemental Studies of Drinking Water
✍ Scribed by M. A. Barreiros; M. L. Carvalho; M. M. Costa; M. I. Marques; M. T. Ramos
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 191 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0049-8246
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✦ Synopsis
The aim of this work was to study the water quality, especially metallic pollution, at water treatment plants and inside buildings. The samples were collected in two regions of Portugal and in one of these regions water collection was also made inside houses chosen according to their type of plumbing, in order to compare its inÑuence on metal concentrations in the drinking water. The analyses were carried out by total-reÑection x-ray Ñuorescence without sample preconcentration. The detection limits were in the range 0.5-1.7
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