Speciation and Optimization of Multi-Elements Analysis of River Sediment in Shanghai by ICP-MS with Microwave-Assisted Digestion Method
作者: Yuanheng Li Daofang Zhang Yuanxing Huang Shijue YuanZhihua Xu
刊名: Asian Journal of Chemistry, 2015, Vol.27 (3)
来源数据库: Asian Journal of Chemistry
DOI: 10.14233/ajchem.2015.17119
关键词: SedimentHuangpu RiverHeavy metalsMicrowave-assisted digestionICP-MS
原始语种摘要: An analytical method was systematically developed for the multi-element analysis of Cr, Ni, Cu, Zn, Pb and Cd in sediments of Huangpu River in Shanghai by inductively coupled plasma mass spectrometry (ICP-MS) with microwave-assisted acid digestion. Three significant factors including drying method, digestion solution (volume ratio of HNO3: HF: H2O2) and the presence of centrifugal separation procedure were investigated individually and compared. Results showed that drying under the temperature of 50 °C caused the largest fluctuation in final results, whereas drying under 100 °C had the least variation in detection results. Increasing the ratio of HF or H2O2 was beneficial for fully digestion of sediment samples. Centrifugation of the digestion solution could obtain higher detected metal...
全文获取路径: 亚洲化学杂志  (合作)

  • digestion 消化
  • Digestion 消化
  • ratio 
  • solution 溶液
  • fraction 分数
  • higher 
  • residual 残留的
  • assisted 辅助的
  • fluctuation 起伏
  • Shanghai 上海