Kokonaisjäännös

Kokonaisjäännös refers to the total residue remaining after a substance has undergone a specific process, often involving evaporation or incineration. In analytical chemistry, it is a measure of all solid matter present in a liquid sample after the liquid has been removed. This can be achieved through drying at a specific temperature or by igniting the sample at a higher temperature to burn off volatile components.

The term can be applied in various contexts. For instance, in water analysis, total residue refers to dissolved and suspended solids. When water is evaporated, the remaining solid material is the total residue. This value can provide insights into the overall purity of the water and its potential for scaling or corrosion. In environmental science, total residue analysis might be used to assess the composition of soil or sediment samples after removal of organic matter through incineration.

The specific method of determining total residue can influence the results. Gravimetric analysis is commonly used, where the mass of the residue is measured. Depending on the application, the residue may be referred to as total dissolved solids (TDS) if only dissolved substances are considered, or total suspended solids (TSS) if only particulate matter is quantified. Understanding the distinction and the specific method employed is crucial for accurate interpretation of kokonaisjäännös values.