New calix[4]arenes with two N-(X)sulfonyl carboxamide groups of ‘tunable’ acidity are synthesized from the corresponding calixarene dicarboxylic acid and exhibit good to excellent extraction selectivity for Pb2+ over most alkali, alkaline earth and transition metal ions.
No takes yet. Share an insight, caveat, or question.
Talanova et al. (1998) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: