Analyze metals with low detection levels

Cause

Manganese causes decomposition of peroxide and therefore impairs the bleaching result, which results in higher peroxide dosage and thus costs. Therefore, it is important to know what manganese content you have in the pulp after the various bleaching steps. On the evaporation side, you often want to know free and total calcium because calcium, together with other things, can cause encrustation and precipitation.

Analyzes of all streams in the recycling show the levels of different metals and where they are in the parts of the recycling cycle. Sometimes mills bring in new firewood or firewood from other purchasing areas and then you want to know if the metal levels are critical.

Sometimes our assignments are purely problem-solving jobs. By combining, for example, analyzes with ICP, FTIR, SEM and light microscopes and our combined experience of existing problems, we can solve even seemingly difficult-to-solve problems.

In the case of analyzes with ICP, the pre-treatment of samples is crucial for a correct analysis result. Since the samples we receive for metal analysis can be both solid, such as chips and pulp, or in liquid form but with a complicated composition such as black liquor, it is important to know how to make a correct digestion of the samples before analysis. An advantage of the ICP is that it is both fast and can detect low levels.

Method

The ICP instrument is an iCAP 7400 ICP-OES and has been supplied by Thermo Scientific.

Deliveries

Report