Characterization of chemically modified steroids for doping control purposes by electrospray ionization tandem mass spectrometry
作者:Mario Thevis、Ute Bommerich、Georg Opfermann、Wilhelm Schänzer
DOI:10.1002/jms.820
日期:2005.4
fragmentation behaviors. A total of 21 steroids comprising either a 4,9,11-triene, a 3-keto-4-ene or a 3-keto-1-ene nucleus were investigated regarding their dissociation pathways, deuterated analogues were synthesized and fragmentation routes were postulated, permitting the identification of steroidal structures and modifications. Compounds based on a 4,9,11-triene steroid with an ethyl residue at C-13 (gestrinone
2003年,在精英运动员的兴奋剂对照样品中发现了设计类固醇四氢孕酮(THG),这证明了仅为兴奋剂目的而制备的类固醇衍生物的可用性。利用电喷雾电离和分析物的碰撞活化解离(CAD)的现代质谱仪通过阐明碎裂行为,可以对类固醇及其衍生化位点进行结构表征。研究了总共21种包含4,9,11-三烯,3-酮-4-烯或3-酮-1-烯核的类固醇的解离途径,合成了氘代类似物并推测了断裂途径,可以识别甾体结构和修饰。基于4,9的化合物