Combined Extraction and Electrochemical Detection of Amines and Phenols Using Microelectrodes in Organic Solvents
2009 (English)In: Electroanalysis, ISSN 1040-0397, E-ISSN 1521-4109, Vol. 21, no 10, 1211-1214 p.Article in journal (Refereed) Published
A straightforward approach for liquid-liquid extractive detection of aromatic amines and phenols is described based on the spontaneous transfer of the molecule from the aqueous to an organic phase and subsequent electrochemical detection in the latter phase using a microelectrode. It is demonstrated that the extent of the transfer can be modified by altering the pH of the aqueous solution and the organic solvent. It is also concluded that the presence of an ion-pair formation agent does not increase the transfer yield for 4-chloroaniline and phenol. The present approach combines liquid-liquid sample clean-up and quantification into a single step which significantly facilitates determinations of aromatic amines and phenols present in complex samples.
Place, publisher, year, edition, pages
Wiley InterScience , 2009. Vol. 21, no 10, 1211-1214 p.
Phase transfer, Liquid-liquid extraction, Electrochemical detection, Microelectrodes, Ion-pair formation
Research subject Inorganic Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-120262DOI: 10.1002/elan.200804546ISI: 000266537700015OAI: oai:DiVA.org:uu-120262DiVA: diva2:302959