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Mercury Selective Electrode

技術優勢

Very selective for mercury, nearly eliminating errors in measurements. The sensor is field portable and suitable for automated long-term deployment. Detects mercury in remote settings quickly without sending physical samples back to the lab.

詳細技術說明

This sensor, developed at Boise State University, addresses the challenges of mercury detection in fluid samples and overcomes the deficiencies in currently available methods. This method is a rapid response, real time, field applicable sensor, capable of detecting and reporting of mercury concentrations at the sub-ppm level. This sensor yields results comparable to laboratory-based instruments.

*Abstract

Mercury detection is of particular interest due to its toxicity, volatility, and the ease with which it can enter the food chain. Currently available technology includes several potentiometric mercury responsive electrodes. Some of these have detection limits as low as 2 ppm (parts per million). However, environmental mercury contamination needs to be detected in the ppb (parts per billion) range. The currently available competing sensors experience significant interference from ions with similar chemical characteristics to mercury, such as cadmium, lead and silver. This leads to false positive signal for mercury. They also have relatively short lifetimes of a few weeks due to rapid leaching of the mercury sensing agent. This invention, in contrast, is robust, rugged, low cost, has a very low power requirement and is designed for manufacturability.

*Principal Investigation

Name: Dale Russell

Department:

附加資料

Patent Number: US6436259B1
Application Number: US1998144574A
Inventor: Russell, Dale D.
Priority Date: 31 Aug 1998
Priority Number: US6436259B1
Application Date: 31 Aug 1998
Publication Date: 20 Aug 2002
IPC Current: G01N002730
US Class: 204418 | 20429005 | 20429011 | 204416 | 42208203 | 204290R
Assignee Applicant: Boise State University,Boise
Title: Mercury selective electrode
Usefulness: Mercury selective electrode
Summary: For detecting and measuring mercury (claimed) in sample.
Novelty: Electrode surface, for detecting and measuring mercury in sample, comprises monomer of thiophene, aniline, or pyrrole having crown ether-derived functional group

主要類別

化工/材料

細分類別

化工/材料應用

申請號碼

US1998144574A

國家/地區

美國