PVC matrix membrane sensor for fluorescent determination of phosphate

Xucong Lin, Xiaoping Wu, Zenghong Xie, Kwok Yin Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)


A novel polyvinyl chloride (PVC) matrix membrane sensor responsive to inorganic phosphate ion was described. The working pH range is 4.0-6.0 and the response time is about 7.5 min. Under the optimum condition, the sensor displayed a good linear response for H2PO4-anion over the concentration range 6.00-15.00 μg/ml with a limit detection of 0.02 μg/ml. The life span of membrane sensors is 90-120 days, and it could be used for 60 times with several supplements of the fluorescent probe. Applied for the determination of phosphate at levels of 8.00-12.00 μg/ml in artificial seawater, the recoveries ranged from 96.6% to 103.8%, and the relative standard deviation was less than 4%.
Original languageEnglish
Pages (from-to)32-36
Number of pages5
Issue number1 SPEC. ISS.
Publication statusPublished - 15 Aug 2006


  • Fluorescent determination
  • Phosphate
  • PVC membrane sensor

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy


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