Does the total phosphorus measured in circulating water include only inorganic phosphorus?
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Everyone, I suddenly had an idea: in the monitoring of total phosphorus in circulating water treatment, does the measurement of total phosphorus refer to all inorganic phosphorus? If organic phosphines are added, can organic phosphorus still be detected? This post was last edited by limingshuguang on 2009-2-26 at 15:23.]
As the name implies, both types of total phosphorus are included. It can be said to be the phosphorus element
Of course it is included; the strong oxidants used in sample processing (generally persulfuric acid) are used to oxidize organic phosphorus into phosphate ions for analysis.
Total phosphorus in circulating water should include both inorganic phosphorus and organic phosphorus. The principle behind measuring total inorganic phosphorus and total phosphorus is the same; the difference lies in the fact that, for the determination of total phosphorus, it is necessary to pre-treat the circulating water sample by adding sulfuric acid.
Total phosphorus includes inorganic phosphorus and organic phosphorus; during measurement, organic phosphorus must be converted into inorganic phosphorus through decomposition before it can be measured.