1996
DOI: 10.1007/bf01252407
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Determination of free iodide in human serum: Separation from other I-species and quantification in serum pools and individual samples

Abstract: Abstract.A method for the determination of free iodide in human serum was developed. For this purpose iodide from pooled serum samples was separated from the organic manner by SEC. The iodide fraction subsequently was freezedried and analyzed by ion chromatography for quantification. Investigations for recovery and precision were carried out and were found to show sufficient results. For quality assurance ICP-MS was taken additionally as an total I-detector [1], using native and iodide-spiked serum samples. Th… Show more

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Cited by 40 publications
(18 citation statements)
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“…The relative standard deviations for peak areas of standard solutions (70 mg/L) were 2.8% (iodide), 3.5% (iodate), 4.5% (thyroxine) and 3.2% (triiodothyro- The total iodine content of the healthy person©s serum (78 mg/L) is in the normal range for the Munich region ( [17,23]: 55±103 mg/L, mean value: 82 8 mg I/L). When looking at species quantities, 16% of total iodine was identified as iodide, 75% as T4-TBG and 9% as T3-TBG.…”
Section: Speciation Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The relative standard deviations for peak areas of standard solutions (70 mg/L) were 2.8% (iodide), 3.5% (iodate), 4.5% (thyroxine) and 3.2% (triiodothyro- The total iodine content of the healthy person©s serum (78 mg/L) is in the normal range for the Munich region ( [17,23]: 55±103 mg/L, mean value: 82 8 mg I/L). When looking at species quantities, 16% of total iodine was identified as iodide, 75% as T4-TBG and 9% as T3-TBG.…”
Section: Speciation Resultsmentioning
confidence: 99%
“…1 mg I/L [ 8] Range: 2±4% of total I Range: 68±100% of total I Range: 3±5% of total I [9] Range: 0±6% of total I Range: 68±93% of total I Range: 0±13.8% of total I Mean: 2.0 0.4% Mean: 86.0 1.7% Mean: 5.2 0.7% [10] Range: 1±4% of total I Range: 55±90% of total I Range: 2±5% of total I [17] Pooled tient. The clinically diagnosed lack of activity from the remaining thyroid gland was confirmed by speciation results in the respective serum.…”
Section: Bonding Of Thyroid-hormone Species To Tbgmentioning
confidence: 99%
“…Different modes of high-performance liquid chromatography (HPLC) have been proposed, such as ion [1] and ion-pair reversed phase [2], with very low detection limits (0.2-2.3 lg L ‫1מ‬ or ppb), for the analysis of serum and urine samples for free iodide. The HPLC methods require expensive instruments and suffer from time-consuming sample preparation and long analysis time.…”
Section: Introductionmentioning
confidence: 99%
“…The most common batch analysis for iodide at the ppb level is based on a reaction (1) in which iodide is the catalyst for a redox process between Ce(IV) and As(III) [6,7]:…”
Section: Introductionmentioning
confidence: 99%
“…The detection of halide is becoming ever more important, especially in some industrial processes [1,2] and in medicine [3,4] and quick, cheap, reliable quanti®cation is required. One approach in recent years has been to use polymeric or glass type halide sensors based on the quenching of¯uorescence of a heterocyclic indicator/s immobilised within/on the support, by halide ions [5±8].…”
Section: Introductionmentioning
confidence: 99%