Direct determination of bioavailable molybdenum in carbon nanotubes

Marcella Giovanni, Adriano Ambrosi, Martin Pumera

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Bioavailable residual metallic impurities within carbon nanotubes (CNTs) are responsible for the toxicity of CNTs. Herein we present a method for fast, sensitive determination of bioavailable molybdenum residual catalyst impurities within CNTs by using electrochemical oxidation in neutral pH buffers at low potentials. This method is unique because no other method can rapidly distinguish between bioavailable/mobilizable impurities from defects in CNTs and between the total amounts of impurities. This method will be indispensable for future toxicological studies of CNTs.

Original languageEnglish
Pages (from-to)1806-1810
Number of pages5
JournalChemistry - A European Journal
Issue number6
Publication statusPublished - 2011 Dec 7

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry


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