title: [Fast determination of phenolic acids in Lycium ruthenicum murr juice by solid phase extraction and HPLC].
abstract: OBJECTIVE
  To establish a quantitative method for determination of gallic acid, original catechins, catechins, chlorogenic acid, caffeic acid, syringic acid in Lycium ruthenicum.
  
  
  METHODS
  The sample was separated on an ODS column (4. 6 mm x 250 mm, 5 pnm), eluted with methanol and water containing 0. 1% acid with detected wavelength at 280 nm, and flow rate at 1. 0 mL x min(-1).
  
  
  RESULTS
  The linearity of six components were good (r = 0.9999). The average recoveries (n=5) of the six constituents were 97. 70% (RSD 2.3%), 99.64% (RSD 1.8%), 100.7% (RSD 2.1%), 99.98% (RSD 2.6%), 99.60% (RSD 2.2%), 99.04% (RSD 2.4%), respectively.
  
  
  CONCLUSIONS
  The method is rapid and precise. It can be used for quality control of Lycium ruthenicum juice.
authors.affiliation: Northwest Institute of Plateau Biology Chinese Academy of Sciences, Xining 810008, China. chenchen19841014@163.com
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.forename: Huaixiu
authors.initials: H
authors.lastname: Wen
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Zhao
authors.forename: Yanduo
authors.initials: Y
authors.lastname: Tao
authors.forename: Yun
authors.initials: Y
authors.lastname: Shao
authors.forename: Lijuan
authors.initials: L
authors.lastname: Mei
mesh_terms: D001628:Beverages / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D062385:Hydroxybenzoates / Q000032:analysis* / Q000302:isolation & purification*; D032305:Lycium / Q000737:chemistry*; D015203:Reproducibility of Results; D052616:Solid Phase Extraction / Q000379:methods*; D013997:Time Factors
chemical_list: D062385:Hydroxybenzoates; C017616:phenolic acid