Photomicrobial sensors for selective determination of phosphate

Tadashi Matsunaga, Toshihiko Suzuki, Ryuzo Tomoda

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A photomicrobial sensor consisting of immobilized Chlorella vulgaris and an oxygen electrode has been developed for selective determination of phosphate. When 40 mM phosphate was added to the sensor system, the photocurrent increased to a maximum under light irradiation with a response time of 1 min. The current increased with increasing phosphate concentration in the range 8-70 mM. Selectivity of the sensor was satisfactory. Good agreement was obtained between the phosphate concentrations in lake water determined by the photomicrobial sensor and by conventional colorimetry (correlation coefficient 0.96).

Original languageEnglish
Pages (from-to)355-358
Number of pages4
JournalEnzyme and Microbial Technology
Volume6
Issue number8
DOIs
Publication statusPublished - 1984
Externally publishedYes

Fingerprint

Phosphates
Sensors
Chlorella vulgaris
Colorimetry
Lakes
Photocurrents
Reaction Time
Electrodes
Irradiation
Oxygen
Light
Water

Keywords

  • electrode
  • immobilized Chlorella
  • Phosphate determination
  • photosynthetic microorganisms
  • sensor

ASJC Scopus subject areas

  • Biotechnology
  • Biochemistry
  • Applied Microbiology and Biotechnology

Cite this

Photomicrobial sensors for selective determination of phosphate. / Matsunaga, Tadashi; Suzuki, Toshihiko; Tomoda, Ryuzo.

In: Enzyme and Microbial Technology, Vol. 6, No. 8, 1984, p. 355-358.

Research output: Contribution to journalArticle

Matsunaga, Tadashi ; Suzuki, Toshihiko ; Tomoda, Ryuzo. / Photomicrobial sensors for selective determination of phosphate. In: Enzyme and Microbial Technology. 1984 ; Vol. 6, No. 8. pp. 355-358.
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