Gradually-ascending spiraled passive sampler for measuring sediment-water diffusion flux of organic pollutants
US9518896B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jan 9, 2013 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Apr 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/1031
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a gradually-ascending spiraled passive sampler for measuring sediment-water diffusion flux of organic polutants, which comprises a sediment pore-water sampler and a water sampler arranged above the sediment pore-water sampler, wherein a plurality of sediment sampling units are vertically arranged in the sediment pore-water sampler, and the water sampler is provided with a plurality of water sampling units arranged transversely along the vertical direction in sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.