Development of a high-sensitivity ion chromatography method for the determination of trace fluoride in water utilizing the formation of the AlF2+ species

✍ Scribed by Phil Jones

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 407 KB
• Volume: 258
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(92)85204-j

✦ Synopsis

AhtIM

The development of a novel ion chromatography method for the determmatlon of trace fluonde IS described The prmaple depends on the formation of the chromatographlcally stable AIF'+ species III the presence of excess alummmm Very high sensltMty IS achieved vnth fluorescence detectlon, grvtng a detectlon hnut of 0 2 pg I-' Lmear cahbratlons were achieved up to 400 ~.g I-' fluortde m the presence of 5 mg I-' excess alummmm Magnesium mterferes m relatively large amounts but can be controlled by adjustment of post-column reactlon pH Results for fluondated drmkmg waters agree well \mth those obtamed by the Ion selectwe electrode techmque Keywor03 Chromatography, Alumuuum, Fluonde, Waters