Abstract:The changes in effective components of Juglans mandshurica at different harvest periods were analyzed by UPLC-Q-TOF-MS/MS. Eighteen batch samples of J. mandshurica from six harvest periods were assessed by multivariate statistical analysis with Markerview software. The formula of different compounds were determined by accurate mass and isotopic abundance ratio from target screening function of Peakview 2.0/Masterview1.0 software. Then their structure were determined by analysis of MS/MS fragment or comparison … Show more
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