Product quality, especially drug quality, is one of the everlasting subjects of human beings. Pharmaceutical analysis has a close relationship with drug quality and plays a very important role in drug research and development, production, storage, supplement and application. The major tasks of pharmaceutical analysis are to answer the questions as follows: Is the drug correctly labeled? What are the concentrations of general and specific impurities in the drug substance? What is the percentage of the stated contents of a drug present in a raw material or formulation? The pharmaceutical analysis procedure includes sampling, identification, limit test, assay and results reporting.