| 摘要 |
The present invention provides methods for determining the amount of NPY in a biological sample using mass spectrometry. The methods involve specific sample collection processes necessary to stabilize and facilitate NYP analyses. Once in the laboratory, sample preparation is followed by on-line extraction, liquid chromatographic separation of relevant moieties with detection by MS/MS whereby specific ion transitions are monitored. This invention has several clinical utilities related to disease processes and patient assessment.
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