Method and device for detection of heavy metal ions in water
US8679849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Sep 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/1813
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure discloses a method and a device for the detection of heavy metal ions in water. The method includes: providing a detection material, wherein the detection material includes a hydrophilic layer which is at least partially covered by a hydrophobic layer formed from a long-chain compound selected from the group consisting of a long-chain thiol, a long-chain fatty acid and combinations thereof, and wherein a detection area is an area covered by the hydrophobic layer, and the detection area has a surface having an initial contact angle with water of more than or equal to about 120°; contacting the detection area with an aqueous solution sample; determining whether the surface of the detection area has a hydrophobicity-hydrophilicity change after contact with the aqueous solution sample; and deciding whether heavy metal ions exist in the aqueous solution sample according to the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.