Determination of captopril in pharmaceutical tablets by anion-exchange HPLC using indirect photometric detection; a study in systematic method development von Mirza, Tahseen, Tan, Henry S.I

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Capillary gas chromatographic assay of camphor and m-cresol in dermatological creams von Mirza, Tahseen, Tan, Henry S.I

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Assay of mixtures of chlorpheniramine maleate, pyrilamine meleate and phenylpropanolamine hydrochloride in cold-allergy tablets by difference spectrophotometry von Tan, Henry S.I., Salvador, Geraldine C.

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Assay of mixtures of padimate-O and oxybenzone in sunscreen formulations by high-performance liquid chromatography von Tan, Henry S.I., Sih, Rahmawati, Moseley, Sharon E., Lichtin, J.Leon

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Indirect photometric detection for determination of citrate in pharmaceutical matrices by ion chromatography von Chalgeri, Arun, Tan, Henry S.I.

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High performance liquid chromatographic assay of amprolium and ethopabate in chicken feed using solid-phase extraction von Tan, Henry S.I., Ramachandran, Pushpa, Cacini, William

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Sensitive Assay Procedure for Ethambutol Hydrochloride via Charge Transfer Complex Formation von Tan, Henry S.I., Gerlach, Eric D., Dimattio, Anthony S.

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Colorimetric Assay of Benzocaine and Some Dosage Forms von Tan, Henry S.I., Bruemmer, Gary A., Shelton, David

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Cation-exchange high-performance liquid chromatographic assay of piperazine in some pharmaceutical formulations von Tan, Henry S.I., Jianling Xu, Yaohan Zheng

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Assay of citrate in pharmaceutical matrices by indirect photometric liquid chromatography von Chalgeri, Arun, Tan, Henry S.I.

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Second-derivative spectrophotometric determination of mixtures of phenylpropanolamine hydrochloride and dextromethorphan hydrobromide in some pharmaceutical preparations von Tan, Henry S.I., Kolmonpunporn, Mantaka

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Difference spectrophotemetric assay of mixtures of phenylpropanolamine hydrochloride with guaifensesin or fextromethorphan hydrobromide in olid cough formulations von Tan, Henry S.I., Salvador, Geraldine C.

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Stability-indicating capillary gas—liquid chromatographic assay of dicyclomine hydrochloride in some pharmaceutical formulations von Tan, Henry S.I., Yan, Ya-Ping, Thio, Alan P.

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Assay of Bicarbonate Content in Certain Effervescent Formulations von Tan, Henry S.I., Cutshall, Jacqueline, Tan, Hetty G.H.

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Synthesis of Novel Analgesic Agents III: 1,2-Dialky1-4-aryl and 1,2,4-Trialkyl-4-aryl Piperidazines von Kornet, Milton J., Tan, Henry S.I.

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High-performance liquid chromatographic separation of noreximide and norendimide in bulk material, tablets and animal feed von Tan, Henry S.I., Pan, Pearl W.

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Synthesis of Novel Analgesic Agents IV: 1,2-Dialkyl-3-aryl Piperidazines and 1,2,3-Trialky1-3-aryl Piperidazines von Kornet, Milton J., Tan, Henry S.I.

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Gas—liquid chromatographic assay of mixtures of camphor, menthol, and methyl salicylate in ointments von Tan, Henry S.I., Kemper, Patricia A., Padron, Petra E.

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In vitro Interaction of Quinidine with Kaolin and Pectin von Bucci, Arthur J., Myre, Steven A., Tan, Henry S.I., Shenouda, Latif S.

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Colorimetric Analysis of Procaine Hydrochloride von Tan, Henry S.I., Shelton, D.

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