I have a problem measuring sulfur in a nickel solution.
The Ni concentration in the product is about 15%. I measure once a solution with 1g/100 ml and once with 1g/200 ml in nitric acid.
With the 1:100 measurement I get twice as high values as with the 1:200 measurement.
The dilution factors are entered correctly.
At the same time sodium is measured, there I do not have the problems.
