Simple, rapid and specific liquid chromatography-mass spectrometry (LC-MS) methods have been developed and validated for the quantification of cefcapene acid in human plasma and urine. Plasma samples were simply pretreated with methanol for deproteinization. Urine samples were briefly diluted with methanol-water (50:50, v/v), and centrifuged to remove large particles. Chromatographic separation...

The objective of the current study was to developed simple, precise and accurate isocratic reversedphase stability indicating HPLC assay method and validated for determination of ticlopidine hydrochloride in solid pharmaceutical dosage forms. Isocratic RP-HPLC separation was achieved on a Phenomenex Luna C8 (2) column (250 mm ́ 4.6 mm i.d., 5 μm particle size) using mobile phase of methanolammon...

A new mathematical treatment concerning the gradient elution in reversed-phase liquid chromatography when the volume fraction psi of an organic modifier in the water-organic mobile phase varies linearly with time is presented. The experimental ln k versus psi curve, where k is the retention factor under isocratic conditions in a binary mobile phase, is subdivided into a finite number of linear ...

Fluconazole(FLK) is a synthetic triazole derivative antifungal agent that has been shown to be effective against a wide range of systemic and superficial fungal infections. A simple, cost effective, precise, accurate, and stabilityindicating isocratic Ultra Performance Liquid Chromatographic (UPLC) method was developed and validated for the determination of FLK in bulk drug and in its tablets. ...

A reliable and sensitive isocratic stability indicating RP-HPLC method has been developed and validated for assay of rosuvastatin calcium in tablets and for determination of content uniformity. An isocratic separation of rosuvastatin calcium was achieved on YMC C8, 150×4.6 mm i.d., 5 μm particle size columns with a flow rate of 1.5 ml/min and using a photodiode array detector to monitor the elu...

A sensitive, fast, and stability-indicating isocratic reverse-phase ultra-performance liquid chromatography method was developed and validated for quantitative simultaneous determination of sodium methylparaben, sodium propylparaben and ketorolac tromethamine in topical dosage forms. Separation of all peaks was achieved by using acquity ethylene bridged hybrid C18 (50×2.1 mm, 1.7 μ) as stationa...

An isocratic, rapid and reproducible high performance liquid chromatographic (HPLC) method for quantitative determination of chlorphenoxamine hydrochloride (CPHX), caffeine (CAFF) and 8-chlorotheophylline (CTHE) has been adopted. The optimal conditions for separation and quantitative determination of these compounds were a normal phase mode chromatography and isocratic elution at ambient temper...

A deoxycytidine analog, gemcitabine (dFdC), is effective for treating solid tumors and hematological malignancies. After being transported into cancer cells, dFdC is phosphorylated to dFdC triphosphate (dFdCTP), which is subsequently incorporated into the DNA strand, thereby inhibiting DNA synthesis. Intracellular dFdCTP is the critical determinant for dFdC cytotoxicity, so therapeutic drug mon...