| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10847725 | Steroids | 2013 | 7 Pages |
Abstract
⺠We extracted endogenous estrogens from humans' urine. ⺠Endogenous and exogenous estrogens identified by mass spectrometry. ⺠Endogenous and exogenous estrogens were discriminated by carbon isotope. ⺠Exogenous estrogens administered could be detected by carbon isotope analysis. ⺠Carbon isotopic analysis of estrogens had potential clinical value.
Keywords
GC–C–IRMSWADA125ICIRRIADUBPregnanediolAMUIRMSMSTFAMTBENIEHSGnRHN-methyl-N-(trimethylsilyl) trifluoroacetamideEtiocholanoloneETIOSPSSHRT17β-estradiolGC–MSLC–MSm/zAndrosteroneWorld Anti-Doping AgencyUrineEstroneEstrogenestriolstandard deviationEndogenousHCGStatistical Package for the Social SciencesExogenousdysfunctional uterine bleedingradioimmunoassayDrug abusei.d.Coefficient of varianceIsotopic ratio mass spectrometrygas chromatography combustion isotope ratio mass spectrometryGas Chromatography Mass SpectrometryLiquid chromatography mass spectrometryinner diameterLodmethyl tert-Butyl etherlimit of detectionNational Institute of Environmental Health SciencesCarbon isotopic ratiomass to charge ratioHemoglobinGonadotropin-releasing hormonehormone replacement therapyHgbelectron volthigh-performance liquid chromatographyHPLCquality controlhuman chorionic gonadotropin
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Authors
Sheng Yang, Dapeng Zhang, Youxuan Xu, Xiaobing Wang, Xin Liu, Shan Wang, Jingzhu Wang, Moutian Wu, Zhenwen He, Jian Zhao, Hong Yuan,