Determination of inorganic anions by flow injection analysis and high-performance liquid chromatography combined with photolytic-electrochemical detection

✍ Scribed by L. Dou; I.S. Krull

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 863 KB
• Volume: 499
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(00)97013-4

✦ Synopsis

Post-column, on-line photolytic derivatization in liquid chromatography with electrochemical detection for some inorganic anions is described. Flow injection analysis and ion-pair reversed-phase chromatography followed by photolysis and electrochemical detection were used for the determinations of anions. Several operation conditions, such as mobile phase, lamp used for the photolysis, flow-rate, and applied potential, have been optimized for the determinations.

Analytical figures of merit were determined. Method validation was carried out by the analysis of single blind, spiked samples. Inherent from the advantages of electrochemical detection in liquid chromatography, the method is of high sensitivity and selectivity for anion analysis.