title: [Rapid detection of alkaloids in Ipecac by direct analysis in real time tandem mass spectrometry (DART-MS/MS)].
abstract: OBJECTIVE
  To detect alkaloids in Ipecac by direct analysis in real time tandem mass spectrometry (DART-MS) without pre-treatment and chromatographic separation.
  
  
  METHODS
  Under the optimum conditions, DART-MS characteristic spectra were collected for tablet of Ipecac powder, Ipecac stems and leaves by full scanning, and secondary spectra were adopted for identifying alkaloids. The multiple reaction monitoring mode was adopted to determine the mass spectrum peak intensity of determinands on the surface of determined samples, in order to calculate their average content in samples.
  
  
  RESULTS
  Spectra of tablet of Ipecac powder and Ipecac stems showed remarkable ionized ion peaks of emetine and cephaeline at m/z 481 and 467, while spectra of leaves showed ionized ion peaks of other alkaloids at m/z 479 and 465. Furthermore, the quantitative analysis was also demonstrated with good reproducibility and linear relationship.
  
  
  CONCLUSIONS
  The mode can play a role in rapid determination of medicinal materials and prepared herbal medicines and real-time rapid quantitative analysis on intermediates and preparations.
authors.affiliation: National Institutes for Food and Drug Control, Beijing 100050, China. dasunlei@sina.com
authors.forename: Lei
authors.initials: L
authors.lastname: Sun
authors.forename: Xiaoru
authors.initials: X
authors.lastname: Hu
authors.forename: Lina
authors.initials: L
authors.lastname: Liu
authors.forename: Hongyu
authors.initials: H
authors.lastname: Jin
authors.forename: Ruichao
authors.initials: R
authors.lastname: Lin
mesh_terms: D000470:Alkaloids / Q000032:analysis*; D007486:Ipecac / Q000032:analysis*; D015203:Reproducibility of Results; D053719:Tandem Mass Spectrometry / Q000379:methods*; D013997:Time Factors
chemical_list: D000470:Alkaloids; D007486:Ipecac