Spectrophotometric determination of bromate ions using phenothiazines

✍ Scribed by S. Farrell; J.F. Joa; G.E. Pacey

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 564 KB
• Volume: 313
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(95)00250-4

✦ Synopsis

A highly sensitive spectrophotometric method for the determination of bromate ion is described. The method is based on the reduction of aqueous bromate ion by a phenothiazine in acidic conditions to produce a colored species. The method is suitable for bromate ion determination in the l-700 pg/l range. For the most sensitive reagent, trifluoperazine, the limit of detection and limit of quantitation were calculated to be 0.67 and 2.25 pg/l, respectively.