Detecting copper in a solution

Hi

Does anyone know how I could detect the amount of copper in water? I'm specifically looking for the concentration of cu2++ ions.

This has been very difficult to find because the keyword 'copper' appears on most sensors. I can assume it's also pretty difficult to do as most electronics use copper.

Thanks

Determination of Copper in Brass: http://www.youtube.com/watch?v=m-5EnGAMKF4

He compares the color of the dissolved copper solution to known concentrations.

63 Grams per Mole * Molarity of the solution * volume of solution = grams of copper ions in the solution.

To do it automatically you would need a calibrated colorimeter.

This is a typical sensor, an expensive electrode attaced to a much more expensive lab instrument : http://www.coleparmer.com/buy/product/71108-cole-parmer-combination-ion-selective-electrodes-copper-cu-2.html

The cheap method uses paper test strips. They cannot be automated.