Synthesis of [2H8]estradiol, [2H7]estrone, [2H6]2-hydroxyestrone and [2H6]4-hydroxyestrone as internal standards for selected ion monitoring
摘要:
The synthesis of [2H8] estradiol, [2H7] estrone, [2H6] 2-hydroxyestrone and [2H6] 4-hydroxyestrone from estrone (as a source) is described. The high isotopical purity renders the labelled compounds as suitable carriers and internal standards for quantitative gas chromatography - mass spectrometry. The content of protonium-form (i.e. natural) estrogens in the labelled derivatives ranged from 0.12% to 2.58%. The performance of these compounds in quantitative assays using selected ion monitoring has been established; and this allows the determination of estrogens from biological material in the lower picogram range.
Synthesis of [2H8]estradiol, [2H7]estrone, [2H6]2-hydroxyestrone and [2H6]4-hydroxyestrone as internal standards for selected ion monitoring
摘要:
The synthesis of [2H8] estradiol, [2H7] estrone, [2H6] 2-hydroxyestrone and [2H6] 4-hydroxyestrone from estrone (as a source) is described. The high isotopical purity renders the labelled compounds as suitable carriers and internal standards for quantitative gas chromatography - mass spectrometry. The content of protonium-form (i.e. natural) estrogens in the labelled derivatives ranged from 0.12% to 2.58%. The performance of these compounds in quantitative assays using selected ion monitoring has been established; and this allows the determination of estrogens from biological material in the lower picogram range.