Iodine Mineral Water and its Therapeutic Use in Health Resorts

Klieber, M; Winkler, Rudolf; Srirajaskanthan, Rajaventhan

doi:10.1016/b978-0-12-374135-6.00036-4

Comprehensive Handbook of Iodine 2009

DOI: 10.1016/b978-0-12-374135-6.00036-4

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Iodine Mineral Water and its Therapeutic Use in Health Resorts

M Klieber¹,

Rudolf Winkler²,

Rajaventhan Srirajaskanthan³

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2018

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Microfluidic Analysis with Front-Face Fluorometric Detection for the Determination of Total Inorganic Iodine in Drinking Water

et al. 2018

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A microfluidic method with front-face fluorometric detection was developed for the determination of total inorganic iodine in drinking water. A polydimethylsiloxane (PDMS) microfluidic device was employed in conjunction with the Sandell-Kolthoff reaction, in which iodide catalyzed the redox reaction between Ce(IV) and As(III). Direct alignment of an optical fiber attached to a spectrofluorometer was used as a convenient detector for remote front-face fluorometric detection. Trace inorganic iodine (IO3 -and I -) present naturally in drinking water was measured by on-line conversion of iodate to iodide for determination of total inorganic iodine. On-line conversion efficiency of iodate to iodide using the microfluidic device was investigated. Excellent conversion efficiency of 93 -103% (%RSD = 1.6 -11%) was obtained. Inorganic iodine concentrations in drinking water samples were measured, and the results obtained were in good agreement with those obtained by an ICP-MS method. Spiked sample recoveries were in the range of 86%(±5) -128%(±8) (n = 12). Interference of various anions and cations were investigated with tolerance limit concentrations ranging from 10 -6 to 2.5 M depending on the type of ions. The developed method is simple and convenient, and it is a green method for iodine analysis, as it greatly reduces the amount of toxic reagent consumed with reagent volumes in the microfluidic scale.

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Microfluidic Analysis with Front-Face Fluorometric Detection for the Determination of Total Inorganic Iodine in Drinking Water

et al. 2018

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Iodine Mineral Water and its Therapeutic Use in Health Resorts

Cited by 1 publication

References 15 publications

Microfluidic Analysis with Front-Face Fluorometric Detection for the Determination of Total Inorganic Iodine in Drinking Water

Microfluidic Analysis with Front-Face Fluorometric Detection for the Determination of Total Inorganic Iodine in Drinking Water

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