Pharmaceutical Analysis

Capillary electrophoresis (CE) with a UV photo-diode array (DAD) detector was used in a new method to detect the assay of amlodipine besylate (AML) and atorvastatin (ATO) in pharmaceutical formulations and human plasma.

Liposomes are made of lipid bilayers and are often used in drug delivery by encapsulating the core with therapeutic drugs. During liposome research, formulation, manufacturing, and quality control, it is of great importance to monitor liposome size and encapsulation.

A liquid chromatography tandem mass spectrometry method for enalapril and enalaprilat from human plasma has been developed using Thermo Scientific SOLA cartridges. Sample preparation is fast, efficient, and reproducible giving excellent recovery levels for each compound.

Using a novel new-design monolithic silica column (Chromolith? HighResolution RP-18e), fast, high resolution separations were achieved for various drug mixtures without the high pressures characteristic of modern particulate technology.

Tetracycline (TC), a common antibiotic used to treat urinary tract infections, acne, gonorrhea, and other conditions, yields a toxic degradation product, 4-epianhydrotetracycline (EATC). General Chapter 226 of the U.S. Pharmacopeia and National Formulary (USP-NF), referred to by monographs for epitetracycline and drug products containing tetracycline hydrochloride (TC-HCl), prescribes an antiquated assay for EATC impurity in TC.

For PAT, you need to choose the right analytical methods. Here's how.

Waters Application Note

Waters Application Note

A discussion of how UHPLC is used to conduct intact protein–antibody analysis and glycoprofiling to characterize biopharmaceutical drugs

The development and commercialisation of new medical drugs is a complex and costly process, but increasing pressure is being placed on drug companies to accelerate the timeline from discovery of new drugs, through to clinical trials and then to their release onto the market. The pharmaceutical industry continues to demand ever more advanced products aimed at improving health and the quality of modern-day life.

Janet Kelsey of The Column spoke to Frédéric Cheviron, Sales & Marketing Manager for Chiral Technologies Europe, about the technology they use in drug development and how companies can improve their method development.

The design of strategies to reduce the activity of residual silanols in conventional alkyl-bonded columns is still one of the main challenges in the current separation of basic compounds by reversed-phase liquid chromatography.

Waters Application Note

Phenomenex Application Note

Waters Application Note

Phenomenex Application Note

Wyatt Application Note

Janet Kelsey of The Column spoke to Geofrey K. Wyatt of Wyatt Technology about MALS technology and how standards set by the European Pharmacopoeia dictate the type of instrumentation used for characterizing hydroxyethyl starch for pharmaceutical use. The advantages of using MALS instrumentation are also explained.

The various steps of an experimental design-based approach are considered and the problems that arise from wrong choices are described.

A description of the use of UHPLC in the biopharmaceutical industry to characterize drug substances through peptide mapping and amino acid analysis

Agilent Application Note

Wyatt Application Note

Dionex Application note

Waters Application Note

The various steps of an experimental design-based approach are considered and the problems that arise from wrong choices are described.

Poplar buds could hold untapped potential as an ingredient in anti-ageing skin creams, a study has found.

Forensic Determination of Sildenafil and Vardenafil in Seized Evidence

Thin Layer Chromatography industrial distribution

Isranalytica offered great talks on biotechnology, on topics from comprehensive protein characterization to middle-out proteomics to capillary electrophoresis for glycoprofiling.

Comprehensive two-dimensional gas chromatography is a powerful technology for separating complex samples and therefore is well suited for non-targeted analysis.