公开(公告)号：US08916817B2

公开(公告)日：2014-12-23

申请号：US14268771

申请日：2014-05-02

Applicant: Quest Diagnostics Investments Inc.

Inventor： Changming Yang ,  Sum Chan

IPC: G01N33/82 ,  H01J49/00 ,  G01N33/68 ,  G01N30/72

CPC classification number: G01N33/487 ,  G01N30/72 ,  G01N30/7233 ,  G01N33/6848 ,  G01N33/82 ,  G01N2030/027 ,  H01J49/0027 ,  H01J49/0031 ,  H01J49/0054 ,  Y10T436/147777

Abstract: Methods are described for measuring the amount of a vitamin B2 in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying vitamin B2 in a sample utilizing on-line extraction methods coupled with tandem mass spectrometric techniques.

Abstract translation: 描述了用于测量样品中维生素B2的量的方法。 更具体地，描述了利用在线提取方法与串联质谱技术相结合来检测和定量样品中维生素B2的质谱方法。

公开(公告)号：US20140179010A1

公开(公告)日：2014-06-26

申请号：US14190313

申请日：2014-02-26

Applicant: Quest Diagnostics Investments, Inc.

Inventor： J. Fred BANKS ,  Peter P. CHOU ,  Noriya M. MATT

IPC: H01J49/00

CPC classification number: H01J49/04 ,  G01N30/7233 ,  G01N33/6848 ,  G01N33/78 ,  G01N2560/00 ,  H01J49/00 ,  H01J49/0027 ,  H01J49/0031 ,  H01J49/004 ,  H01J49/0081 ,  H01J49/0431 ,  H01J49/10

Abstract: Provided are methods for determining the amount of reverse T3 in a sample using mass spectrometry. The methods generally involve ionizing reverse T3 in a sample and detecting and quantifying the amount of the ion to determine the amount of reverse T3 in the sample.