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Journal Articles Journal of Analytical Chemistry / Zhurnal analiticheskoi khimii Year : 2020

Chelating Performance Evaluation of Ion Exchange Resin Chelex-100

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Abstract

This study aims to answer the question about the chelating capacity of Chelex-100 resin according to the size of grains obtained after different grindings of a 200–400 mesh powder. Optical microscopy was used for size characterization of different new sub-types of resin obtained after grinding. The copper chelating capacity was evaluated using inductively coupled plasma−mass spectrometry. Grinding enables copper to be chelated by all iminodiacetate groups of the resin. Thus, the copper chelating capacity increases by 17% compared to unground resin and is more repeatable from one aliquot to another (1% RSD with optimal grinding versus 3% without grinding).
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hal-02555320 , version 1 (27-04-2020)

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Stéphane Faucher, Clotilde Moreau, Philippe Chéry, Gaetane Lespes. Chelating Performance Evaluation of Ion Exchange Resin Chelex-100. Journal of Analytical Chemistry / Zhurnal analiticheskoi khimii, 2020, 75 (4), pp.468-473. ⟨10.1134/S1061934820040024⟩. ⟨hal-02555320⟩
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