title: [Quality control of non-alkaloids from Radix Sophorae tonkinensis].
abstract: OBJECTIVE
  To establish a method for quality control of non-alkaloids from Radix Sophorae tonkinensis.
  
  
  METHODS
  Sugar, organic-acid, polyphenolic and saponin were identified by TLC. The contents of Sugar, polyphenolic and saponin were determined by spectrophotometry and the content of organic-acids was determined by acid-based titration.
  
  
  RESULTS
  The contents of sugar, polyphenolic and saponin were 54.37%, 4.74%, 4.40%, respectively. The average content of organic-acid was 9.40%.
  
  
  CONCLUSIONS
  The established method is simple, accurate, reproducible and suitable for the quality control of non-alkaloids from Radix Sophorae tonkinensis.
authors.affiliation: School of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China. yyzh2035@gmail.com
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Zhang
authors.forename: Zhi-Yong
authors.initials: ZY
authors.lastname: Guo
authors.forename: Guo-Xiang
authors.initials: GX
authors.lastname: Xie
authors.forename: Yue-Qiu
authors.initials: YQ
authors.lastname: Gao
authors.forename: Ai-Hua
authors.initials: AH
authors.lastname: Zhao
authors.forename: Wei
authors.initials: W
authors.lastname: Jia
mesh_terms: D002241:Carbohydrates / Q000032:analysis* / Q000302:isolation & purification; D002855:Chromatography, Thin Layer / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D005419:Flavonoids / Q000032:analysis / Q000302:isolation & purification; D010636:Phenols / Q000032:analysis / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D059808:Polyphenols; D011786:Quality Control; D015203:Reproducibility of Results; D027343:Rhizome / Q000737:chemistry; D012503:Saponins / Q000032:analysis* / Q000302:isolation & purification; D029909:Sophora / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013678:Technology, Pharmaceutical / Q000379:methods
chemical_list: D002241:Carbohydrates; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D010636:Phenols; D059808:Polyphenols; D012503:Saponins