Anions in non saline waters - Determination of Anions in Natural and Treated Waters - page 183

presence of other anions (bromide, iodate, nitrite and nitrate) in water. The method is
based on partition of the anions to a cationic micelle phase and shows different selectivity
from ion exchange chromatography.
The application of this technique is also discussed under multianion analysis in section
13.5.1.2.
2.50.16 Gas chromatography
The application of this technique is discussed under multianion analysis in section
14.1.1.2.
2.50.17 Miscellaneous
Pilipenko et al. [373] have described a chemiluminescence method for determining trace
iodide in non saline waters based on iodide oxidation to iodine by bromine water or by
1,3-dibromo-5,5-dimethylhydantoin, followed by iodine cyanide (ICN) generation and its
determination using luminol. The detection limit was 5ng of iodide mL −1 in the absence
of interfering impurities. Interferences from calcium and magnesium were eliminated by
sample dilution or by precipitation of calcium carbonate and magnesium hydroxide.
2.50.18 Preconcentration
The application of preconcentration techniques is discussed in section 15.1.5.
2.51 Isobutyrate
2.51.1 Ion chromatography
The application of this technique is discussed under multianion analysis in section 12.2.5.
2.51.2 High performance liquid chromatography
The application of this technique is discussed under multianion analysis in section
13.1.1.5.
2.52 Isocitrate
2.52.1 Ion chromatography
The application of this technique is discussed under multianion analysis in section 12.2.5.