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Cited by 273

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Nonlinear Data Alignment for UPLC−MS and HPLC−MS Based Metabolomics: Quantitative Analysis of Endogenous and Exogenous Metabolites in Human Serum

Open access
Nordström, Anders, O'Maille, Grace, Qin, Chuan, Siuzdak, Gary·2006·Analytical Chemistry

Abstract

A nonlinear alignment strategy was examined for the quantitative analysis of serum metabolites. Two small-molecule mixtures with a difference in relative concentration of 20-100% for 10 of the compounds were added to human serum. The metabolomics protocol using UPLC and XCMS for LC-MS data alignment could readily identify 8 of 10 spiked differences among more than 2700 features detected. Normalization of data against a single factor obtained through averaging the XCMS integrated response areas of spiked standards increased the number of identified differences. The original data structure was well preserved using XCMS, but reintegration of identified differences in the original data reduced the number of false positives. Using UPLC for separation resulted in 20% more detected components compared to HPLC. The length of the chromatographic separation also proved to be a crucial parameter for a number of detected features. Moreover, UPLC displayed better retention time reproducibility and signal-to-noise ratios for spiked compounds over HPLC, making this technology more suitable for nontargeted metabolomics applications.

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Metadata

Authors
Nordström, A., O'Maille, G., Qin, C., & Siuzdak, G.
Venue
Analytical Chemistry
Published
2006-04-11
Volume
78
Issue
10
Pages
3289-3295
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W1978921268
Cited by
273
References
18
FWCI
9.45
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Nonlinear Data Alignment for UPLC−MS and HPLC−MS Based Metabolomics: Quantitative Analysis of Endogenous and Exogenous Metabolites in Human Serum. https://app.cochat.ai/papers/10.1021/ac060245f
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Nordström, A., O'Maille, G., Qin, C., & Siuzdak, G. (2006). Nonlinear Data Alignment for UPLC−MS and HPLC−MS Based Metabolomics: Quantitative Analysis of Endogenous and Exogenous Metabolites in Human Serum. Analytical Chemistry. https://doi.org/10.1021/ac060245f

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.