| 19071831 |
Noroozifar M, Khorasani-Motlagh M, Zare-Dorabei R: Application of Ag2X (X=SO3 (2-), Cr2O7 (2-), C2O4 (2-) and CO3 (2-)) solid-phase reagents for indirect determination of cyanide in the industrial effluent using FIA-FAAS system. Talanta. 2007 Jul 31;72(5):1773-8. Epub 2007 Feb 17.
Four solid-phase reagents have been tested for indirect determination of cyanide using flow injection analysis-flame atomic absorption spectrometry (FIA-FAAS). The method is based on insertion of aqueous cyanide solutions into an on-line Ag (2) X (where X are SO (3)(2-), Cr (2) O (7)(2-), C (2) O (4)(2-) and CO (3)(2-)) packed column (25%, m/m suspended on silica gel beads) and re-distilled water or sodium hydroxide are used as the carrier stream. The eluent containing the analyte as silver cyanide complexes, produced from reaction between Ag (2) X and cyanide, measured by flame atomic absorption spectrometry. The method is simple, fast and selective than other published FIA procedures. A relative standard deviation (R.S.D.) better than 1.12% was obtained in a repeatability study. The method was applied to the determination of cyanide in industrial electrolytic baths. |
6(0,0,1,1) |