Simple and versatile operational fractionation of Fe and Zn in dietary products by solid phase extraction on ion exchange resins

Talanta ◽  
2007 ◽  
Vol 71 (1) ◽  
pp. 411-418 ◽  
Author(s):  
P. Pohl ◽  
B. Prusisz
Keyword(s):  
Ion Exchange ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Ion Exchange Resins ◽  
Phase Extraction ◽  
Exchange Resins

scholarly journals Terephthalaldehyde–Phenolic Resins as a Solid-Phase Extraction System for the Recovery of Rare-Earth Elements

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 311
Author(s):  
Ruth Oye Auke ◽  
Guilhem Arrachart ◽  
Romain Tavernier ◽  
Ghislain David ◽  
Stéphane Pellet-Rostaing
Keyword(s):  
Rare Earth ◽  
Ion Exchange ◽  
Solid Phase Extraction ◽  
Rare Earth Elements ◽  
Solid Phase ◽  
Extraction System ◽  
Ion Exchange Resins ◽  
Phase Extraction ◽  
Phenolic Resins ◽  
Exchange Resins

Rare-earth elements (REEs) are involved in most high technology devices and have become critical for many countries. The progress of processes for the extraction and recovery of REEs is therefore essential. Liquid–solid extraction methods are an attractive alternative to the conventional solvent extraction process used for the separation and/or purification of REEs. For this purpose, a solid-phase extraction system was investigated for the extraction and valorization of REEs. Ion-exchange resins were synthesized involving the condensation of terephthalaldehyde with resorcinol under alkaline conditions. The terephthalaldehyde, which is a non-hazardous aromatic dialdehyde, was used as an alternative to formaldehyde that is toxic and traditionally involved to prepare phenolic ion-exchange resins. The resulting formaldehyde-free resole-type phenolic resins were characterized and their ion-exchange capacity was investigated in regard to the extraction of rare-earth elements. We herein present a promising formaldehyde and phenol-free as a potential candidate for solid–liquid extraction REE with a capacity higher than 50 mg/g and the possibility to back-extract the REEs by a striping step using a 2 M HNO3 solution.

scholarly journals Sensitive determination of gentamicin in plasma using ion-exchange solid-phase extraction followed by UHPLC-MS/MS analysis

2021 ◽  
pp. e00246
Author(s):  
Ana Laura Anibaletto dos Santos ◽  
Anne Caroline Cezimbra da Silva ◽  
Lilian de Lima Feltraco Lizot ◽  
Anelise Schneider ◽  
Roberta Zilles Hahn ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Ms Analysis ◽  
Sensitive Determination

Solid-phase lanthanum catalysis of monoacylation of diols in water by acyl phosphate monoesters

2015 ◽  
Vol 93 (4) ◽  
pp. 445-450 ◽  
Author(s):  
Raj S. Dhiman ◽  
Aizhou Wang ◽  
Ronald Kluger
Keyword(s):  
Ion Exchange ◽  
Solid Phase ◽  
Lanthanide Ions ◽  
Ion Exchange Resins ◽  
Immobilized Catalysts ◽  
Phosphate Monoesters ◽  
Efficient Route ◽  
Exchange Resins ◽  
Acyl Phosphate

Lanthanide ions are readily bound to ion-exchange resins. The lanthanide-containing resins serve as immobilized catalysts for the biomimetic monoacylation of diols in water using acyl phosphate monoesters as acylation agents. This method provides an efficient route for recovering the catalyst in the process of modifying RNA derivatives and carbohydrates.

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