LIU Ying-jie,YAO Ming-zhu,LI Shan-wei,et al.Research on Metabolomics Analysis Method for Fish Gills Target Organs Based on UPLC-QTOF MS[J].Journal of Instrumental Analysis,2022,41(08):1193-1199.
LIU Ying-jie,YAO Ming-zhu,LI Shan-wei,et al.Research on Metabolomics Analysis Method for Fish Gills Target Organs Based on UPLC-QTOF MS[J].Journal of Instrumental Analysis,2022,41(08):1193-1199. DOI: 10.19969/j.fxcsxb.22012301.
Research on Metabolomics Analysis Method for Fish Gills Target Organs Based on UPLC-QTOF MS
In view of the lack of accurate and efficient high-throughput detection techniques in metabolomics research of gill target organs in fish,an analysis method based on ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLC-QTOF MS) was established and optimized.In order to improve the extraction effect of metabolites in the sample,the total peak area,number of metabolites,relative standard deviations(RSDs) of relative peak area,and response values of glucose,,L,-leucine,citric acid,and other three representative endogenous metabolites with different species and polarities were used as indicators,and the effects of different experimental conditions on the extraction coverage and stability of metabolites in gill tissue were investigated.The results showed that the best extraction effect could be obtained by adding pre-cooled methanol-water(4∶1) at a sample-reagent ratio(mg∶μL) of 1∶16 to the gill tissue ground at low temperature,and holding for 30 min at -20 ℃,then centrifuged to extract gill tissue samples.Meanwhile,the chromatographic and mass spectrometry parameters in the data acquisition process were optimized,further improving the separation effect and signal intensity of metabolites.Methodological investigations were carried out by using quality control(QC) samples interspersed in the assay sequence.The results showed that this metabolomics analysis posessed good instrumental precision,method precision,and sample stability.The RSDs for the relative peak areas of the six representative metabolites with different polarities were lower than 10%,which meets the requirements for metabolomics research of fish gill target organs.The results provide an technical support for the metabolomic study of fish gill target organs.
关键词
代谢组学样品前处理鱼类鳃超高效液相色谱-飞行时间质谱
Keywords
metabolomicssample pretreatmentfishgillultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLC-QTOF MS)
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