Cold decomposition procedure for the spectrophotometric determination of manganese in rocks, ores and minerals

✍ Scribed by C.R.M. Rao

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 285 KB
• Volume: 291
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(94)85135-2

✦ Synopsis

A cold decomposition procedure for the spectrophotometric determination of manganese in rocks, ores and minerals is described. Samples are allowed to react with hydrofluoric acid and aqua regia at room temperature for 24 h. Fluoride'ions in the solution are complexed with boric acid and manganese is determined spectrophotometritally using potassium periodate as the reagent. No interferences were observed in the colour development and accurate values were obtained for a number of international reference standards. The entire decomposition procedure is carried out at room temperature utilizing only plastic ware. The method is ideal for large batch analyses.