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Chelating Performance Evaluation of Ion Exchange Resin Chelex-100

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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https://hal-univ-pau.archives-ouvertes.fr/hal-02555320
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Submitted on : Monday, April 27, 2020 - 11:23:16 AM
Last modification on : Tuesday, June 2, 2020 - 5:42:04 PM

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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, MAIK Nauka/Interperiodica, 2020, 75 (4), pp.468-473. ⟨10.1134/S1061934820040024⟩. ⟨hal-02555320⟩

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