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WebOct 25, 2021 · A generally accepted method for the analysis of the resin acids has relied upon extraction at alkaline pH into methyl t-butyl ether (MTBE), followed by evaporative concentration and...
WebJun 20, 1997 · The simultaneous extraction and derivatisation of anion-exchange resin-trapped volatile fatty acids (C 2 –C 5) as their pentafluorobenzyl esters has successfully been performed...
WebThis paper reports on studies of the behavior of amino acids on elution from: (a) a sulfonic acid resin in the sodium form, (b) a quaternary ammonium resin in the chloride form,...
WebAug 28, 2020 · Ning Zhang. 3968 Accesses. 24 Citations. 1 Altmetric. Explore all metrics. Abstract. Amino acids are important metabolites for tissue metabolism, growth,...
WebJul 21, 2022 · Mastic is a tepenoid resin made up of the acids moronic, oleanonic, masticadienoic, masticadienonic, and oleanolic . Mastic is used to make varnishes, paints, surgical adhesives,...