Pulse amperometric detection of salt concentrations by flow injection analysis using ionodes

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Lee, HJ (Author) Other; Pereira, CM (Author) FCUP; Silva, AF (Author) FCUP; Girault, HH (Author) Other

Journal

Title: Analytical Chemistry

Vol. 72

Pages: 5562-5566

ISSN: 0003-2700

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 39 Citations

Scopus - 38 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-YG4

DOI: 10.1021/ac0006831

Abstract (EN): A sensitive novel approach of using an amperometric ion detector for the now injection analysis of salts has been developed. The detection methodology is based on measuring the-current associated with the transfer of ions across polarized microinterfaces between the aqueous sample solution and a 2-nitrophenyloctyl ether-poly(vinyl chloride) gel phase, referred to as ionodes, Different sodium salts of fluoride, chloride, bromide, nitrate, and sulfate were investigated. It was found that by employing an amperometric pulse detection mode and pure water as eluent; the detection limit of the ionode detector could be lowered to ppt level of salt concentrations under flowing conditions.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5