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A non-aqueous capillary electrophoresis (NACE) method is presented for the assay of tocopherols in vegetable oils. The composition of the separation buffer was optimized using an experimental design and response-surface methodology, resulting in the selection of a solution made of 12mM borate buffer (3mM sodium tetraborate), 60mM sodium cholate, and 12mM sodium hydroxide in methanol as optimal. The...
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