Abstract
Capillary electrophoresis–mass spectrometry (CE–MS) is an ideal method for analyzing various metabolites in biological samples. CE–MS can simultaneously identify and quantify hundreds of charged metabolites using only two acquisition methods for positively and negatively charged metabolites. Furthermore, CE–MS is commonly used for analyzing biological samples to understand the pathology of diseases at the metabolic level and biofluid samples, such as blood and urine, to explore biomarkers. Here, we introduce a protocol that delineates the handling of clinical samples to ensure that the CE–MS analysis yields reproducible quantified data. We have focused on sample collection, storage, processing, and measurement. Although the implementation of rigorous standard operating protocols is preferred for enhancing the quality of the samples, various limitations in an actual clinical setting make it difficult to adhere to strict rules. Therefore, the effect of each process on the quantified metabolites needs to be evaluated to design a protocol with acceptable tolerances. Furthermore, quality controls and assessments to handle clinical samples are introduced.
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This research was funded by grants from JSPS KAKENHI (grant number 20B205).
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Sugimoto, M., Aizawa, Y. (2023). Metabolomics Analysis of Blood, Urine, and Saliva Samples Based on Capillary Electrophoresis–Mass Spectrometry. In: González-Domínguez, R. (eds) Mass Spectrometry for Metabolomics. Methods in Molecular Biology, vol 2571. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2699-3_8
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DOI: https://doi.org/10.1007/978-1-0716-2699-3_8
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