Unveil Drug Impurity in Chromatogram

Reversed Phase High Performance Liquid Chromatography (RP-HPLC) is the most popular analytical technique in pharmaceutical development. Its principle is partition of organic drug molecules between stationary phase (HPLC column) and mobile phase (solvents pumping through the column). The more polar the drug molecules, less partition on the stationary phase, consequently the faster it is eluded …

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No Yield to Yield Stress

Semi-solid and liquid drug products display complex rheological behaviors, which have significant impact on patient compliance, product manufacturability and stability. Aside from Ketchup or toothpaste, there are ample examples of semi-solid and liquid dosage forms where the rheology plays a delicate role in product characteristics. For instance, a medicated shampoo should be easily poured out …

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