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Title: Continuous real-time measurement of aqueous cyanide

Abstract

This invention provides a method and system capable of the continuous, real-time measurement of low concentrations of aqueous free cyanide (CN) using an on-line, flow through system. The system is based on the selective reactivity of cyanide anions and the characteristically nonreactive nature of metallic gold films, wherein this selective reactivity is exploited as an indirect measurement for aqueous cyanide. In the present invention the dissolution of gold, due to the solubilization reaction with the analyte cyanide anion, is monitored using a piezoelectric microbalance contained within a flow cell.

Inventors:
;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176130
Patent Number(s):
7186379
Application Number:
10/071,017
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Resource Relation:
Patent File Date: 2002 Feb 07
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Rosentreter, Jeffrey J., and Gering, Kevin L. Continuous real-time measurement of aqueous cyanide. United States: N. p., 2007. Web.
Rosentreter, Jeffrey J., & Gering, Kevin L. Continuous real-time measurement of aqueous cyanide. United States.
Rosentreter, Jeffrey J., and Gering, Kevin L. Tue . "Continuous real-time measurement of aqueous cyanide". United States. https://www.osti.gov/servlets/purl/1176130.
@article{osti_1176130,
title = {Continuous real-time measurement of aqueous cyanide},
author = {Rosentreter, Jeffrey J. and Gering, Kevin L.},
abstractNote = {This invention provides a method and system capable of the continuous, real-time measurement of low concentrations of aqueous free cyanide (CN) using an on-line, flow through system. The system is based on the selective reactivity of cyanide anions and the characteristically nonreactive nature of metallic gold films, wherein this selective reactivity is exploited as an indirect measurement for aqueous cyanide. In the present invention the dissolution of gold, due to the solubilization reaction with the analyte cyanide anion, is monitored using a piezoelectric microbalance contained within a flow cell.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {3}
}

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Works referenced in this record:

Verwendung von Schwingquarzen zur W�gung d�nner Schichten und zur Mikrow�gung
journal, April 1959


Determination of cyanide based upon its reaction with colloidal silver in the presence of oxygen
journal, June 1986


Electrochemical applications of the quartz crystal microbalance
journal, October 1989