Electrospray ionization tandem mass spectrometry of isomeric iridoid glucoside dimers

Teucrium polium Phenylethanol and Iridoid Glycoside Characterization and Flavonoid Inhibition of Biofilm-Forming Staphylococcus aureus

“…Chemical characterization was performed in part by the sensitive and efficient technique of mass spectrometry. Tandem MS analysis has been employed for structural elucidation and/or confirmation of natural products including iridoid glycosides (IGs). , In this study, six new T. polium metabolites were characterized by a combination of NMR and MS data analyses, and in the case where isomers could not be separated, characterization was based solely on LC-MS/MS analysis.…”

Analyses of the Iridoid Glucoside Dimers in Paederia scandens Using HPLC–ESI–MS/MS

“…Mass spectrometry (MS) has been an important physicochemical method for the identification of trace natural products in extracts due to its rapidity, sensitivity, and low levels of sample consumption. A series of iridoid glucosides was studied by ESI–MS/MS (Es‐Safi et al ., ; Ren et al ., ; Zhou et al ., ; Li et al ., ; Cao et al ., ; Lu et al ., ). In this study, HPLC–ESI–MS/MS was applied for the phytochemical analysis of the extract of Paederia scandens .…”

Tandem Solid-Phase Extraction Followed by HPLC-ESI/QTOF/MS/MS for Rapid Screening and Structural Identification of Trace Diterpenoids in Flowers of Rhododendron molle

“…In recent years, HPLC coupled with quadrupole time-of-flight (QTOF) MS/MS has become an increasingly powerful tool for identifying complicated components in herbal medicines (Zhang et al, 2012a). Moreover, mass spectrometry (MS) is a widely applied method for the identification of trace natural products because it is rapid, sensitive and requires small amounts of sample (Lu et al, 2012).…”