M Lookabaugh

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A reverse phase high pressure liquid chromatographic method in which ion-pairing is used for the determination of combinations of pseudoephedrine hydrochloride with triprolidine hydrochloride or chlorpheniramine maleate in syrups and tablets was collaboratively studied by 8 laboratories. Collaborators were supplied with 12 samples including synthetic and(More)
Inorganic anions are typically determined by ion chromatography, ion-selective electrodes, or by "wet chemical" procedures. An alternative to these approaches is afforded by paired-ion, reversed-phase high-performance liquid chromatography (HPLC), and the application of this technique to the determination of iodide and thiosulfate is discussed. Each analyte(More)
High-performance capillary electrophoresis (HPCE) was evaluated as a potential technique for the regulatory analysis of commercial dosage forms of insulin. A comparison was made to a liquid chromatographic analysis presently being proposed as an official monograph in the United States Pharmacopeia. The salient points of this comparison were accuracy,(More)
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