Voltammetric determination of iodide in iodized table salt using cetyltrimethylammonium bromide as ion-pairing

Chemically modified carbon paste electrode for iodide determination on the basis of cetyltrimethylammonium iodide ion-pair.

A new carbon paste electrode (CPE) for the determination of iodide ion based on a cetyltrimethylammonium iodide (CTMAI) ion pair as an electroactive material is described. The electrode shows a linear response for iodide ion over the concentration range of 4 x 10(-5) M to 1 x 10(-1) M with a lower detection limit of 4 x 10(-5) M at 25 degrees C. The electrode has a Nemstian slope of -55.0 +/- 0...

Voltammetric method based on an ion-pairing reaction for the determination of trace amount of iodide at carbon-paste electrodes.

Carbon-paste electrodes (CPEs) were studied to elucidate the cathodic stripping voltammetric determination of iodine. At an accumulation potential of 1.0 V (vs. SCE), iodide was preconcentrated on CPEs via an ion-pairing reaction, followed by oxidation to iodine. Then a linear scan voltammogram was recorded after 10 s of quiescent time by a cathodic potential scan from 0.7 V to 0.1 V at a scan ...

Determination of iodide in seawater by capillary ion chromatography using hexadimethrine bromide modified C30 stationary phases.

A novel and simple capillary ion chromatographic method for the determination of iodide is reported. Separation was achieved on a laboratory-made packed capillary column (100 mm × 0.32 mm i.d.) packed with triacontyl-functionalized silica, followed by a modification with hexadimethrine bromide, where 1 mM sodium chloride-acetonitrile (95:5, v/v) was used as the eluent and UV-absorbing analyte ...

Direct Determination of Bromide, Nitrate, and Iodide in Saline Matrixes Using Electrostatic Ion Chromatography with an Electrolyte as Eluent

Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060, Japan, School of Chemistry, University of Tasmania, GPO Box 252-75, Hobart 7001, Australia, Division of Material Science, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060, Japan, National Industrial Research Institute of Nagoya, 1-1 Hirate-cho, Kita-ku, Nagoya 462-8510, Japan, Au...

Enhanced detection of iodide in seawater by ion chromatògraphy using an ODS column coated with cetyltrimethylammonium.