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 ...

In this module, a whole range of sample preparation techniques for HPLC and LC-MS are covered in detail, including the theory, optimisation and applications. The techniques include filtration; ...

Quality control (QC) is a critical step in the pharmaceutical and biopharmaceutical industry. Every manufacturer must demonstrate that its drugs are consistently produced, safe, potent, and pure. The ...

HPLC Techniques for Rapid Analysis According to Curtis Campbell, liquid chromatography product manager for Shimadzu (www.shimadzu.com), injection of plasma samples directly into a liquid ...

Porvair Sciences has announced a new version of its MiniVap™ Blowdown Evaporator able to quickly and safely remove solvent from up to 48 vials in parallel. Made from solvent resistant black ...

Sample quality directly influences the reliability of an experiment. Researchers executing high pressure liquid chromatography (HPLC) experiments must incorporate standardized weighing scales, ...

Clean, careful, targeted sample preparation is essential for obtaining valuable information from mass spectrometry experiments. A well-designed sample preparation protocol must avoid contamination by ...

Renewed interest in studying complex patterns of proteins in cells and tissues has led to new developments in analytical technologies. This interest in following changes in the cellular protein ...

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 ...