Hydroxypropyl methyl cellulose (HPMC) stock solution, 2% (wt/vol; ∼86 K nominal molecular weight; 4,000-cP viscosity; Aldrich); prepare 24 h before use as an aqueous 2% (wt/vol) stock solution by ...

In the past few years, high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) has matured to a true alternative to antibody-based immunoassays in routine therapeutic drug ...

The preparation of standards, also referred to as reference samples, of known concentrations is a frequently used procedure in most analytical laboratories. Internal or external standards with ...

Porvair Sciences has announced new versions of its MiniVap and UltraVap blowdown evaporators that use warm air or nitrogen to speed up the evaporation of common HPLC solvents such as dichloromethane, ...

The term liquid chromatography (LC) refers to a class of physicochemical methods which are used to separate and quantify compounds in a sample. LC is made up of a liquid mobile phase, which carries ...

Liquid chromatography (LC) is a chromatographic technique used to separate and analyze mixtures of chemical components in solution, to determine if a specific component is present or absent and, if ...