title: [Analysis and Evaluation of Inorganic Elements in Euryale Semen from Different Habitats by Microwave Digestion-ICP-OES].
abstract: OBJECTIVE
  To establish a simple, rapid and efficient method for determination of different inorganic elements in Euryale Semen from different habitats.
  
  
  METHODS
  Inductively coupled plasma-optical emission spectrometry(ICP-OES) was applied to determine inorganic elements in Euryale Semen, and the results were analyzed by principal component analysis.
  
  
  RESULTS
  Euryale Semen from different habitats contained the kind of inorganic elements ranging from 22 to 26, including micronutrient elements like Iron, Zinc, Selenium, Copper, Molybdenum, Chrome and Cobalt, as well as macronutrient elements such as Potassium, Calcium, Sodium, Magnesium and Phosphorus. Five factors were extracted and used to comprehensively evaluate Euryale Semen from 20 different habitats covered almost China. The comprehensive function was F = 0. 38828F1 + 0. 25603F2 + 0. 07617F3 + 0. 06860F4 + 0. 04868F5, which resulted in the top three samples coming from Jiangsu Gaoyou, Hunan Xiangxi and Jiangsu Suzhou respectively.
  
  
  CONCLUSIONS
  The study indicates that ICP-OES is a quick, accurate and sensitive method to determine the contents of inorganic elements in Euryale Semen,which provides scientific and reliable reference for its quality control and safety assessment.
authors.forename: Hong
authors.initials: H
authors.lastname: Wang
authors.forename: Qi-nan
authors.initials: QN
authors.lastname: Wu
authors.forename: Cheng-ying
authors.initials: CY
authors.lastname: Wu
authors.forename: Xiu-he
authors.initials: XH
authors.lastname: Fan
authors.forename: Zheng
authors.initials: Z
authors.lastname: Jiang
authors.forename: Wei
authors.initials: W
authors.lastname: Gu
authors.forename: Wei
authors.initials: W
authors.lastname: Yue
mesh_terms: D002118:Calcium; D002681:China; D017753:Ecosystem; D007477:Ions; D007501:Iron; D008872:Microwaves; D030702:Nymphaeaceae / Q000737:chemistry*; D011188:Potassium; D012639:Seeds / Q000737:chemistry*; D012643:Selenium; D014131:Trace Elements / Q000032:analysis*; D015032:Zinc
chemical_list: D007477:Ions; D014131:Trace Elements; D007501:Iron; D012643:Selenium; D015032:Zinc; D011188:Potassium; D002118:Calcium