Separation of steroid isomers by ion mobility mass spectrometry

被引:75
作者
Ahonen, Linda [1 ]
Fasciotti, Maira [2 ,3 ]
af Gennas, Gustav Boije [1 ]
Kotiaho, Tapio [1 ,4 ]
Daroda, Romeu J. [3 ]
Eberlin, Marcos [2 ]
Kostiainen, Risto [1 ]
机构
[1] Univ Helsinki, Fac Pharm, Div Pharmaceut Chem, FI-00014 Helsinki, Finland
[2] Univ Estadual Campinas, ThoMSon Mass Spectrometry Lab, Inst Chem, UNICAMP, BR-13083970 Campinas, SP, Brazil
[3] INMETRO, Natl Inst Metrol Qual & Technol, Div Chem, BR-25250020 Duque De Caixas, RJ, Brazil
[4] Univ Helsinki, Dept Chem, Analyt Chem Lab, SF-00100 Helsinki, Finland
基金
芬兰科学院;
关键词
Ion mobility mass spectrometry; Steroids; Steroid isomers; Derivatization; Collision cross section; ANABOLIC-ANDROGENIC STEROIDS; CHROMATOGRAPHY/MASS SPECTROMETRY; HUMAN BRAIN; HUMAN SERUM; NEUROSTEROIDS; TESTOSTERONE; GAS; METABOLITES; IONIZATION; ESTROGEN;
D O I
10.1016/j.chroma.2013.08.056
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Ion mobility mass spectrometry performed in a compact traveling wave cell (TWIM-MS) is shown to provide a reliable, fast and repeatable method to separate derivatized steroid isomers. Three steroid isomer pairs were analyzed in their native form and as their p-toluenesulfonyl isocyanate derivatives. The native steroids were separated from each other, but no separation could be attained for the isomers. The derivatized steroid isomers were, however, properly separated by TWIM-MS with peak-to-peak resolutions close to or as high as baseline resolution (Rp-p = 0.77-1.08). (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:133 / 137
页数:5
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