title: [Research progress of enhancing quantitative sensitivity by using LC-MS(n) with derivatization method in bio-matrices].
abstract: Liquid chromatography/mass spectrometry (LC-MS(n)) has been essential to a large number of quantitative analytical applications in drug research, and especially in the drug PK/PD research, due to its high sensitivity and high specificity. But following the appearance of drugs with high activity and low dosage and the especial structural compounds, a number of limitations of LC-MS(n) have been noted. Derivatization changes the structure of drugs and therefore changes their physical and chemical properties, resulting in high ionization efficiency, low matrix effect and low disturbance by inorganic salts and endogenous compounds in LC-MS(n). In this article, recent progress in the research of the chemical derivatization strategy with LC-MS(n) is reviewed on breakthrough of some LC-MS(n) limitations, in particular focusing on the applications involving some drugs in bio-matrices.
authors: Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China.
authors: Ying
authors: Y
authors: Li
authors: Li-Li
authors: LL
authors: Xu
authors: Jin-Xiu
authors: JX
authors: Ruan
authors: Zhen-Qing
authors: ZQ
authors: Zhang
mesh_terms: D000818:Animals; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D002853:Chromatography, Liquid / Q000379:methods*; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods*; D004364:Pharmaceutical Preparations / Q000032:analysis*; D012680:Sensitivity and Specificity
chemical_list: D004364:Pharmaceutical Preparations