Method for simultaneous determination of particle size distribution and concentration of nanoparticulate mercury in natural soils
US11830713B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | May 16, 2022 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jul 6, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for simultaneous determination of particle size distribution, concentrations of nanoparticulate mercury (Hg-NPs) in natural soils. The method uses sodium pyrophosphate as the extractant, and allows quick extraction of Hg-NPs in the soil without dissolution or aggregation. In combination with spICP-MS determination, the method makes it possible to simultaneously determine the particle size distribution and concentration of Hg-NPs in the complex soil matrix, with accurate determination results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.