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10.1002/jps.2600681032.abs A high‐pressure liquid chromatographic technique was developed for the separation of penicillin G potassium and several of its decomposition products. The method utilized a buffered acetonitrile‐phosphate mobile phase on a reversed‐phase C18 column. Separation of...
10.1002/jps.2600681015.abs A modified electron‐capture GLC assay for metoclopramide in human biological specimens is reported. This assay involves the incorporation of a back‐extraction method to remove endogenous contaminants. Its applicability was demonstrated by studying the time course of...
10.1002/jps.2600681008.abs Unlike most organic compounds, both digoxin and digitoxin melted over a wide temperature range, with the widest range being 88 and 33° for both compounds, respectively. Furthermore, the melting ranges varied markedly among several untriturated powders obtained from...
10.1002/jps.2600681012.abs A specific high‐pressure liquid chromatographic method for the determination of chlorpheniramine and pseudoephedrine in urine was developed and applied in a urinary excretion study of normal healthy subjects who received a sustained‐release dosage form containing 8...
10.1002/jps.2600681006.abs A number of nuclear hydroxy styryl ketones and related compounds were prepared and evaluated for antineoplastic and antimicrobial activities as well as for analgesic, anti‐inflammatory, and antianaphylactic properties. The second‐order rate constants for the...
10.1002/jps.2600681034.abs Plasma binding of chlordiazepoxide, diazepam, lorazepam, and oxazepam was determined by equilibrium dialysis in 20 male, healthy volunteers, 25‐86 years old. A wide range of binding was observed, with the free fraction varying twofold for lorazepam, fourfold for...
10.1002/jps.2600681024.abs Dissolution behavior was studied for four commercial batches of enteric‐coated aspirin tablets from two companies. The USP XIX dissolution procedure was modified by including pretreatment in simulated gastric juice. The effects of five pretreatment times were studied....
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