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Tytuł pozycji:

Development of a plasma pseudotargeted metabolomics method based on ultra-high-performance liquid chromatography-mass spectrometry.

Tytuł :
Development of a plasma pseudotargeted metabolomics method based on ultra-high-performance liquid chromatography-mass spectrometry.
Autorzy :
Zheng F; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.; University of Chinese Academy of Sciences, Beijing, China.
Zhao X; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.; University of Chinese Academy of Sciences, Beijing, China.
Zeng Z; Dalian ChemDataSolution Information Technology Co. Ltd., Dalian, China.
Wang L; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.; University of Chinese Academy of Sciences, Beijing, China.
Lv W; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.; University of Chinese Academy of Sciences, Beijing, China.
Wang Q; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.; University of Chinese Academy of Sciences, Beijing, China.
Xu G; CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China. .; University of Chinese Academy of Sciences, Beijing, China. .
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Źródło :
Nature protocols [Nat Protoc] 2020 Aug; Vol. 15 (8), pp. 2519-2537. Date of Electronic Publication: 2020 Jun 24.
Typ publikacji :
Journal Article; Research Support, Non-U.S. Gov't
Język :
English
Imprint Name(s) :
Original Publication: London, UK : Nature Pub. Group, 2006-
MeSH Terms :
Chromatography, High Pressure Liquid*
Mass Spectrometry*
Metabolomics/*methods
Plasma/*metabolism
Time Factors
Entry Date(s) :
Date Created: 20200626 Date Completed: 20200914 Latest Revision: 20201031
Update Code :
20201031
DOI :
10.1038/s41596-020-0341-5
PMID :
32581297
Czasopismo naukowe
Untargeted methods are typically used in the detection and discovery of small organic compounds in metabolomics research, and ultra-high-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) is one of the most commonly used platforms for untargeted metabolomics. Although they are non-biased and have high coverage, untargeted approaches suffer from unsatisfying repeatability and a requirement for complex data processing. Targeted metabolomics based on triple-quadrupole mass spectrometry (TQMS) could be a complementary tool because of its high sensitivity, high specificity and excellent quantification ability. However, it is usually applicable to known compounds: compounds whose identities are known and/or are expected to be present in the analyzed samples. Pseudotargeted metabolomics merges the advantages of untargeted and targeted metabolomics and can act as an alternative to the untargeted method. Here, we describe a detailed protocol of pseudotargeted metabolomics using UHPLC-TQMS. An in-depth, untargeted metabolomics experiment involving multiple UHPLC-HRMS runs with MS at different collision energies (both positive and negative) is performed using a mixture obtained using small amounts of the analyzed samples. XCMS, CAMERA and Multiple Reaction Monitoring (MRM)-Ion Pair Finder are used to find and annotate peaks and choose transitions that will be used to analyze the real samples. A set of internal standards is used to correct for variations in retention time. High coverage and high-performance quantitative analysis can be realized. The entire protocol takes ~5 d to complete and enables the simultaneously semiquantitative analysis of 800-1,300 metabolites.

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