Atomic absorption spectrometry as an alternate technique for iodine determination (1968–1998)

Abstract

Introduction cases, the substance that is directly determined is a metal. The success of an indirect procedure greatly depends on whether 2 Discussion 2.1 Iodine species and optical details the selectivity of the reaction is maintained through (and 'in spite of ') the chemical reaction (or reactions) carried out 2.2 Atomization and procedure 2.2.1 Solvent extraction methods previously to performing the atomic absorption measurement.2,3 Since there are many factors that can affect the whole 2.2.2 Precipitation methods 2.2.3 Complexation methods procedure, indirect methods are often laborious, difficult to automatize and rarely used in routine analysis.3 On the con-2.3 Analytical figures of merit 2.4 Interferences and samplestrary, in a direct method the analyte is atomized and the absorption of radiation by its atoms is recorded to determine 3 Conclusions the analyte concentration. Thus, a direct method is usually much more simple (and much less time-consuming) as well as complexity does not prevent achieving good results and thus,

Assay of Iodine in Foodstuffs

“…The reasons are that atomic absorption spectrometry (AAS) equipment is not intended to make measurements in the vacuum UV range, therefore they require modifications, and due to the lack of a commercially available iodine lamp the radiation source has to be produced individually (Bermero-Barrera et al, 1999). The reasons are that atomic absorption spectrometry (AAS) equipment is not intended to make measurements in the vacuum UV range, therefore they require modifications, and due to the lack of a commercially available iodine lamp the radiation source has to be produced individually (Bermero-Barrera et al, 1999).…”

Development and validation of the quantitative determination procedure of iodine in the iodides form in the kelp thallus by the ionometry method

“…[ 23 ] However, the determination of this nonmetal AAS method can be determined by the AAS method only indirectly by determining the metals that form the iodine compounds with accurate stoichiometry . [ 24 25 26 ] However, this nonmetal can be determined by the AAS method only indirectly, namely by determining metals that form compounds with iodine with exact stoichiometry. [ 24 25 26 ] The most widely used methods in the iodine determination in natural objects are the mass spectrometry with inductively coupled plasma[ 27 28 29 30 ] and the older labor-intensive Sandell–Koltgoff kinetic method.…”

An improved analytical method for iodine-129 determination in low-level radioactive waste

“…To stabilize the dissolved ioBrought to you by | New York University Bobst Library Technical Services Authenticated Download Date | 6/1/15 1:20 PM dide, tetramethylammonium hydroxide (TMAH), a watersoluble tertiary-amine solution (CFA-C), NaOH/KOH/NH 3 or mixed alkaline agents as described above are usually used. There have been several studies on alkaline digestion for the determination of iodine in urine [18,19], blood [19,20], milk [15,17,[21][22][23][24][25], animal feed [18,19], food/plants [26,27] and seaweed [28][29][30]. Urine, blood serum and blood samples can be directly analyzed for iodine by ICP-MS after centrifugation and dilution with TMAH or NH 3 .…”