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The derivatization of molecular iodine to iodoform and its determination by adsorptive stripping voltammetry

✍ Scribed by Ada Möller; Fritz Scholz; Milivoj Lovrić

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
377 KB
Volume
7
Category
Article
ISSN
1040-0397

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✦ Synopsis

The determination of elementary iodine in aqueous solutions is possible by a preliminary liquid-liquid extraction into benzene, followed by a derivatization to iodoform with alcoholic KOH solution. The iodoform is measured by adsorptive stripping voltammetry at a signal which corresponds to the reaction

The calibration plot is linear up to 1 x analytical procedure is 10%. The procedure is applicable to seawater.

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✍ X.X. Sun; Y.M. Chi; H.Y. Chen 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 431 KB

A sensitive method for the determination of nanomolar concentrations of guanine in a medium of \(0.02 M \mathrm{NaHCO}_{3}-0.06 M \mathrm{Na}_{2} \mathrm{SO}_{4}\) by differential pulse adsorption cathodic stripping voltammetry has been developed. The limit of detection is \(3 \times 10^{-10} \mathr