Electrochemical determination of cinnamtannin B1 with a pyrolytic graphite electrode

Xinjian Liu, Ting Chen, Tomonori Hoshi, Yoshitomo Kashiwagi, Jun Ichi Anzai, Genxi Li

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Cinnamtannin B1 (trimeric proanthocyanidin), which is identified and isolated from the effective fraction of the root of Lindera aggregata (Sims) Kosterm, is one kind of condensed tannin used as an effective antipyrotic and antitumor agent. Its electrochemical response can be obtained at a pyrolytic graphite electrode. Consequently, an easily performed and sensitive method for the determination of cinnamtannin B1 is developed. The detection limit is estimated to be 1.0∈×∈10-7∈M with the linear determination range of 2.0∈×∈10-7∈M to 1.8∈×∈10-6∈M. Five replicate analyses of 1.0∈×∈10-6∈M cinnamtannin B1 yields an RSD value of 2.1%. Since the working electrode does not need to be modified with any other species, it is very stable, repeatable and easily treated, and this method therefore potentially useful in real sample analysis.

Original languageEnglish
Pages (from-to)73-76
Number of pages4
JournalMicrochimica Acta
Volume150
Issue number1
DOIs
Publication statusPublished - 2005 May 1

Keywords

  • Cinnamtannin B1
  • Determination
  • Electroanalysis
  • Pyrolytic graphite electrode

ASJC Scopus subject areas

  • Analytical Chemistry

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