Graphene/dodecanol floating solidification microextraction for the preconcentration of trace levels of cinnamic acid derivatives in traditional Chinese medicines
作者: Shuang HuXiao YangJiao XueXuan ChenXiao‐hong BaiZhi‐hui Yu
作者单位: 1School of Pharmacy Shanxi Medical University Taiyuan P.R. China
刊名: Journal of Separation Science, 2017, Vol.40 (14), pp.2959-2966
来源数据库: Wiley Journal
DOI: 10.1002/jssc.201700169
关键词: cinnamic acid derivativesfloating solidification microextractiongraphenehigh‐performance liquid chromatographytraditional Chinese medicines
原始语种摘要: A novel graphene/dodecanol floating solidification microextraction followed by HPLC with diode‐array detection has been developed to extract trace levels of four cinnamic acid derivatives in traditional Chinese medicines. Several parameters affecting the performance were investigated and optimized. Also, possible microextraction mechanism was analyzed and discussed. Under the optimum conditions (amount of graphene in dodecanol: 0.25 mg/mL; volume of extraction phase: 70 μL; pH of sample phase: 3; extraction time: 30 min; stirring rate: 1000 rpm; salt amount: 26.5% NaCl; volume of sample phase: 10 mL, and without dispersant addition), the enrichment factors of four cinnamic acid derivatives ranged from 26 to 112, the linear ranges were 1.0 × 10−2–10.0 μg/mL for...
全文获取路径: Wiley  (合作)

  • cinnamic 肉桂的
  • dodecanol 十二烷醇
  • solidification 凝固
  • floating 浮动的
  • traditional 传统
  • derivatives 派生物
  • extraction 提取
  • caffeic 咖啡的
  • trace 痕迹
  • mechanism 机构