Phosphrous total (P-TOT)

Phosphorus is present in all living organisms and is an essential nutrient. For example, calcium phosphate is the principal material in bones and teeth. Phosphoric acid is the common acid of phosphorus and it is a brown/green viscous liquid with a slight acid odour. There are a large number of inorganic phosphorus compounds and they often combined with e.g. metals such as sodium, potassium, calcium and aluminium. Read more