Flow Injection Spectrophotometric Determination of Iodide in Environmental Samples

A Review of Spectrophotometric and Chromatographic Methods and Sample Preparation Procedures for Determination of Iodine in Miscellaneous Matrices

“…For any given purpose, one of the first factors taken into account is whether the method's detection limit is adequately low. Several methods of iodine determination have been proposed, including catalytic methods (with LOD=0.1 μg/ l) (Kamavisdar & Patel, 2002), chromatography in various modes (eg., IC with LOD = 0.1-0.8 μg/l (Hu et al, 1999;Bichsel & Von-Gunten, 1999), (chromatographic methods are especially useful for iodine speciation when coupled with ICP-MS or elecrochemical detection), GC-EC: gas chromatography with electron capture detection (0.11μg/l) (Maros et al, 1989), GC-MS: gas chromatography-mass spectrometry(0.010 μg/l) (Das et al, 2004), FAAS: flame atomic absorption spectrometry (2.75 μg/l) (Yebra & Bollaín, 2010), NAA (0.1-0.2 μg/l) (Hou et al, 1999), ETAAS: electrothermal atomic absorption spectrometry (1.2 -3.7 μg/l) (Bermejo-Barrera et al, 1999), inductively coupled plasma mass spectrometry ICP-MS (1.0-9.0 μg/l) (Fernandez-Sanchez & Szpunar 1999), ICP-AES (40.0-470.0 μg/l) (Anderson & Markowski, 2000), inductively coupled plasma optical emission spectrometry (ICP-OES) (2 µg/l) (Naozuka et al, 2003), ion selective electrodes (1.96 μg/l) (Kandhro et al, 2009), X-rayfluorescence (XRF) (180 μg/L) (Varga, 2007), VG-ICP-OES: vapour generation inductively coupled plasma optical emission spektrometry (20 μg/l) (Niedobová at al., 2005). The iodine content can also be measured by the use of titrimetric methods usually combined with potentiometric measurements.…”

“…An alternative flow injection spectrophotometric method for the determination of I -in the ground and surface water was reported by Kamavisdar and Patel (Kamavisdar & Patel, 2002). The method was based on the catalytic destruction of the colour of the Fe(III)-SCN − -CP + -n BP y quarternary complex.…”

Determination of Iodides from Groundwater and Surface Water using an Optimized Ion Chromatographic Method

“…Other methods have been proposed for iodide and iodate anions analysis in aqueous solutions. such as catalytic methods (for 0.1 μg/L detection limit) [9], ionchromatographic (IC) methods in different variants (as for example IC and exchange capacity controllable columns and column-switching technique (for 5.7 μg/L detection limit)) [10], IC coupled with an ultraviolet detector (for 9.45 nM detection limit) [11]. IC techniques are also used for the analysis of other inorganic ions (chloride, bromide, fluoride, etc.)…”

Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

“…Düşük derişimlerde iyodür tayini için donanımı pahalı, kullanımı için tecrübeli personele ihtiyaç duyulan, numunelerin bazı ön işlemlerle analize hazırlanmasını gerektiren ve analiz süresi uzun olan amperometrik [2], spektrometrik [3][4][5][6][7], kromatografik [8][9][10], voltametrik [11], kemilüminesans [12] ve akış enjeksiyon analizi [13][14][15][16] gibi çeşitli enstrümantal analiz yöntemleri bulunmaktadır.…”