Patent ID: 11879898
Assignee: DH TECHNOLOGIES DEVELOPMENT PTE. LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A method for analyzing total testosterone in a sample comprising the steps of:
a) combining in a microcentrifuge vial, a compound of formula:, an aqueous solution containing zinc sulfate, and a solution containing 2,3,4,-13C3-testosterone,
b) adding to the microcentrifuge vial, a serum or plasma sample containing or suspected to contain testosterone,
c) mixing the microcentrifuge vial,
d) centrifuging the microcentrifuge vial,
e) separating a supernatant in the microcentrifuge vial from any precipitate,
f) analyzing the supernatant using tandem mass spectrometry for testosterone.