Concept
DGT Research Diffusive Gradients in Thin Films water sampler
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0553/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | DGT water sampler | |
| Definition | A device designed to measure concentrations of dissolved metal species in water. It comprises a plastic casing that contains a Chelex resin impregnated in a hydrogel to accumulate metals. The resin layer is overlain by a diffusive layer of hydrogel and a filter. Ions diffuse through the filter and diffusive layer to reach the resin layer, thereby establishing a constant concentration gradient in the diffusive layer that allows the quantitative measurement of labile species in solution through laboratory analysis. | |
| Date | None | |
| Identifier | TOOL0553 | |
| Note | accepted | |
| Is Version Of | TOOL0553 | |
| version | 1 | |
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