Copper types

[Charles Silva]

Hi all

I would like to know what kind of Copper (free, complexed or total) is measured by ours home kits ?

When requesting a copper lab ICP-OES do we have to specify the kind of copper or the result shows the 2 types separated or only total copper ?

Should we only concern with free copper or are there any positive benefits of removing the complexed as well ?

Regards
Charles Silva
Rio de Janeiro, Brazil

 

[Reefing Madness]

 

[Randy Holmes-Farley Verified Community Expert]

ICP gives total copper of any form.

Some copper kits will detect cupramine and some might not.

Other types of chelation will depend on the chelator. It is not one thing any more than fish food is all the same.

 

[Charles Silva]

Randy in your result (table 1) is it total copper ?

http://www.reefedition.com/my-triton-testing-results-by-randy-holmes-farley/


I raised this question because in this article Dana Riddle shows free and total copper (Figure 3 and 4).

http://www.advancedaquarist.com/2012/2/chemistry

Which should I test to evaluate if my sps rtn has relation with copper ? Free or total copper ?