Maybe because organics in the vial can break down in transit?
I use ICP to see how balanced the saltwater ions and trace metals are, but I also like to use ICP to see how well my test kits are preforming. I test my water the same time as I collect the sample for ICP.
Just wondering if nutrients can appear higher than reality.
I use ICP to see how balanced the saltwater ions and trace metals are, but I also like to use ICP to see how well my test kits are preforming. I test my water the same time as I collect the sample for ICP.
Just wondering if nutrients can appear higher than reality.