Electrochemical microbioassay of vitamin b1

Tadashi Matsunaga*, Isao Karube, Shuichi Suzuki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


A microbioassay of vitamin B1 is possible with a new electrode assembly consisting of a platinum anode and a silver peroxide cathode. The response time of the electrode decreases with increasing amount of the bacterial suspension (L. fermenti) injected. A linear relationship is obtained between the steady-state current and the concentration of vitamin B1 in the culture broth. The microbioassay can be completed within 6 h, with relative errors of ±8%. A possible mechanism of the current generation is discussed.

Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalAnalytica Chimica Acta
Issue number1
Publication statusPublished - 1978 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Analytical Chemistry
  • Spectroscopy
  • Environmental Chemistry


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