Amperometric Determination of Sulfite by Gas Diffusion-Sequential Injection with Boron-Doped Diamond Electrode

@inproceedings{Chinvongamorn2008AmperometricDO,
  title={Amperometric Determination of Sulfite by Gas Diffusion-Sequential Injection with Boron-Doped Diamond Electrode},
  author={Chakorn Chinvongamorn and Kulwadee Pinwattana and Narong Praphairaksit and Toshihiko Imato and Orawon Chailapakul},
  booktitle={Sensors},
  year={2008}
}
A gas diffusion sequential injection system with amperometric detection using aboron-doped diamond electrode was developed for the determination of sulfite. A gasdiffusion unit (GDU) was used to prevent interference from sample matrices for theelectrochemical measurement. The sample was mixed with an acid solution to generategaseous sulfur dioxide prior to its passage through the donor channel of the GDU. Thesulfur dioxide diffused through the PTFE hydrophobic membrane into a carrier solution… CONTINUE READING

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