The discussion about the interfering factors of total phosphorus determination in water and method optimization
Received:May 27, 2019  Revised:November 05, 2019
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DOI:doi:10.3969/j.issn.2095-1035.2019.06.001
KeyWord:Total phosphorus; interfering factors; control; optimization
  
AuthorInstitution
LIN Shu 福建省厦门水文水资源勘测分局
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Abstract:
      The total phosphorus (TP) was an important indicator for the water quality evaluation. The method was interfered easily during the sample collection, storage and lab-determination process. And it has been the difficulty for water-monitoring. The article analyzed and discussed kinds of interferences during the TP testing, proposed the necessary of strict control for detection steps, and carried out the optimization for the determination method by the practical working experience. The article verified the result and suggestion of optimized method by four kinds of water samples. The precision of method is between 1.6%~3.7%, the recovery is between 90%~107%, and the detection limit (DL) is better than national standard. The testing result showed the optimized method could determine kinds of water more accurately and efficiently, and it was helpful to improve the efficiency and safety of TP determination in water.
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