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 ...

Sample preparation plays a crucial role in bioanalytical analysis involving chromatography. Insufficient sample preparation, such as skipping protein precipitation, phospholipid removal (PLR), ...

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 ...