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《Guangdong Chemical Industry》 2008-03
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The Decomposition and Analysis Method for Dissolved Total Phosphorus in Seawater by Persulphate Oxidation under Acid Condition

Lin Guichi(Guangdong Fishing School,Guangzhou 510320,China)  
Experimental research conducted on the decomposition efficiency of four different types of organic and inorganic phosphorus compounds in seawater under acid or basic condition by persulphate oxidation.The influence factors on decomposition efficency,such as digestion time and pH were identified.It was shown that noncondition phosphate could be decomposed completely by persulphate.But in alkali condition,condensed phosphate could only be decomposed partly.Almost 100 % decomposition efficiency could be reached for all types of compounds containing phosphorus under acid condition.A persulphate oxidation method in acid medium for decomposition and analysis of dissolved total phosphorus in seawater was proposed.
【CateGory Index】: X834
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