A voltammetric method for fluoride

✍ Scribed by H.E. Zittel; T.M. Florence

• Publisher: Elsevier Science
• Year: 1968
• Tongue: English
• Weight: 519 KB
• Volume: 40
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(00)86692-1

✦ Synopsis

Most of the procedures used currently for the determination of micro amounts of fluoride are calorimetric. <'lcncrnlly they entail the bleaching of a metal-organic complex by the formation of a stronger metal-fluoride complex. One widely used method of the above type is the determination of fluoride by its effect on the zirconium-alizarin red S complex. l'hc method has been the subject of many studies and is run under a variety of conditions 1. It has been reported recently that both alizarin red S and its zirconium complex exhibit ancdic reactions at the rotating pyrolytic graphite electrode (IWG1~)~. A voltammetric method for micro amounts of fluoride, based upon the anodic reaction of alizarin red S at the RAGE, has been developed. The procedure is simple , rapid and as little as 20 p.p.1~. of fluoride may be detcrmincd with good accuracy and precision.

Voltammctev.