title: [A new method for safety monitoring of natural dietary supplements--quality profile].
abstract: OBJECTIVE
  A new method for safety monitoring of natural dietary supplements--quality profile was proposed. It would convert passive monitoring of synthetic drug to active, and guarantee the security of natural dietary supplements. Preliminary research on quality profile was completed by high performance liquid chromatography (HPLC) and mass spectrometry (MS).
  
  
  METHODS
  HPLC was employed to analyze chemical constituent profiles of natural dietary supplements. The separation was completed on C18 column with acetonitrile and water (0.05% H3PO4) as mobile phase, the detection wavelength was 223 nm. Based on HPLC, stability of quality profile had been studied, and abnormal compounds in quality profile had been analyzed after addition of phenolphthalein, sibutramine, rosiglitazone, glibenclamide and gliclazide. And by MS, detector worked with ESI +, capillary voltage: 3.5 kV, cone voltage: 30 V, extractor voltage: 4 V, RF lens voltage: 0.5 V, source temperature: 105 degrees C, desolvation temperature: 300 degrees C, desolvation gas flow rate: 260 L/h, cone gas flow rate: 50 L/h, full scan mass spectra: m/z 100-600. Abnormal compound in quality profile had been analyzed after addition of N-mono-desmethyl sibutramine.
  
  
  RESULTS
  Quality profile based on HPLC had good stability (Similarity > 0.877). Addition of phenolphthalein, sibutramine, rosiglitazone, glibenclamide and gliclazide in natural dietary supplements could be reflected by HPLC, and addition of N-mono-desmethyl sibutramine in natural dietary supplements could be reflected by MS.
  
  
  CONCLUSIONS
  Quality profile might monitor adulteration of natural dietary supplements, and prevent addition of synthetic drug after "approval".
authors.affiliation: Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Wang
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Wang
authors.forename: Da-Jin
authors.initials: DJ
authors.lastname: Yang
authors.forename: Bo
authors.initials: B
authors.lastname: Chen
mesh_terms: D002851:Chromatography, High Pressure Liquid; D019587:Dietary Supplements / Q000009:adverse effects / Q000032:analysis / Q000592:standards*; D006801:Humans; D011786:Quality Control; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods