Portable XRF data screening method for heavy metal contaminated soil
US11698354B1 · kind B1 · utility
1Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Dec 21, 2022 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Dec 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/652
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a portable XRF data screening method for heavy metal contaminated soil, relating to the technical field of heavy metal contamination test. The method includes the following steps: (1) laboratory test; (2) XRF test; and (3) calculation of a recheck interval: dividing test data into four areas by a contaminant screening value Xc as a horizontal line and a correlation-derived site screening value as a vertical line to calculate the recheck interval. The method is simple and efficient, and is beneficial to saving investigation costs and shortening a project cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.