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- W1992470420 abstract "Triethylamine (TEA) was evaluated as a competing base for the retention control and peak shape improvement in the reversed-phase high-performance liquid chromatographic (RP-HPLC) analysis of selected acidic, basic, and neutral drugs. The effects of this amine on the capacity factor and theoretical plate number values of ephedrine, phenol, and sulfamerazine were examined on three unmodified commercial octadecylsilane chromatographic columns. Based on these results, a general RP-HPLC elution scheme using a μBondapak C18 10-μm column, methanol—acetic acid—TEA—water mobile phases, and an ultraviolet detector was developed for more than 150 drugs of pharmaceutical interest. The proposed method was applied to the separation of groups of chemically or pharmacologically related drugs that included sympathomimetic amines, antihistamines, phenothiazines, local anesthetics, Cinchona and tropane alkaloids, xanthines, sulfonamides, and steroids. In addition, paired-ion drugs such as physostigmine salicylate and combinations of ascorbic acid, benzoic acid, salicyclic acid, pamoic acid, and 8-chlorotheophylline with various basic moieties were readily and effectively resolved into their ionic components using almost identical RP-HPLC conditions." @default.
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- W1992470420 date "1986-01-01" @default.
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- W1992470420 title "General reversed-phase high-performance liquid chromatographic method for the separation of drugs using triethylamine as a competing base" @default.
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- W1992470420 doi "https://doi.org/10.1016/s0021-9673(00)94711-3" @default.
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