Rapid detection of zinc pyrithione by SERS
US12429377B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jul 1, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a method of detecting zinc pyrithione (ZPT) in a sample such as water, waste water, shampoos, etc. The method includes steps of, (a) contacting the sample with a substrate having a layer of metal nanostructure deposited thereon thereby coating the layer of metal nanostructure of the substrate with the sample; and (b) subjecting the sample coated substrate to Raman spectroscopy analysis; wherein, the presence of peaks at 575, 829, 1136 and 1545 cm−1 in Raman spectrum indicates the presence of ZPT in the sample. According to embodiments of the present disclosure, the method may detect ZPT in a concentration ranging from 0.1 ng/mL to 8 μg/mL.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.