Silver indicator methods and test kit
OwnerManfred J. Wooginventor
Life of this patent
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Abstract
A method for determining silver concentration in a solution is disclosed. This method generally comprises immersing a substantially pure, elemental, copper strip in a sample of the solution to be tested, agitating the strip in the sample, removing the strip from the sample, and observing the color change, if any, of the strip. These strips are generally greater than 99% pure copper, and have been coated with a metal ion layer. An alternative embodiment provides for removal of the metal ion layer immediately before testing the silver concentration of the solution. A test kit comprising the active copper strips is also disclosed.
Claims15
A method for determining silver concentration in a solution comprising:
- a) immersing a strip of substantially pure, elemental, copper coated with a metal ion layer into a removing solution that removes the metal ion layer;
- b) removing said strip from said removing solution;
- c) immediately immersing said strip into the solution to be tested for silver concentration;
- d) removing said strip from said solution of step c);
- e) observing the color of the tarnish on said strip;
- and
- f) employing the color of the tarnish in determining the silver concentration.
A test kit for determining the concentration of silver in a solution comprising a substantially pure, elemental, copper strip coated with a metal ion layer and a solution for removing the metal ion layer.
Dependencies are inferred from the claim text.