Methods and systems for the quantitative analysis of biomarkers

Radiant energy – Ionic separation or analysis – With sample supply means

Reexamination Certificate

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C250S282000

Reexamination Certificate

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07935921

ABSTRACT:
Disclosed are methods and systems using liquid chromatography/tandem mass spectrometry (LC-MS/MS and 2D-LC-MS/MS) for the analysis of endogenous biomarkers, including steroid hormones, such as estrone and estradiol, thyroid hormones, such as free thyroxine, and metabolites, such as 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3, in biological samples.

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