Methods for detecting vitamin D metabolites by mass...

Chemistry: analytical and immunological testing – Nuclear magnetic resonance – electron spin resonance or other...

Reexamination Certificate

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C436S131000

Reexamination Certificate

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07972867

ABSTRACT:
Provided are methods of detecting the presence or amount of a vitamin D metabolite in a sample using mass spectrometry. The methods generally comprise ionizing a vitamin D metabolite in a sample and detecting the amount of the ion to determine the presence or amount of the vitamin D metabolite in the sample. Also provided are methods to detect the presence or amount of two or more vitamin D metabolites in a single assay.

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