Corpus ID: 101854331

HG-AFS Determination of Arsenic in Lycium Chinense with Microwave Assisted Sample Digestion

@article{Chunxia2011HGAFSDO,
  title={HG-AFS Determination of Arsenic in Lycium Chinense with Microwave Assisted Sample Digestion},
  author={Yang Chun-xia},
  journal={Physical Testing and Chemical Analysis},
  year={2011}
}
  • Yang Chun-xia
  • Published 2011
  • Chemistry
  • Physical Testing and Chemical Analysis
HG-AFS was applied to the determinations of arsenic in Lycium chinense.Sample was dissolved with HNO3 and H2O2,and hydride of As(Ⅲ) was generated from HCl(5+95) solution by reacting with 20.0 g·L-1 KBH4 solution.Flow-rates of 400 mL·min-1 for carrier gas and 1 000 mL·min-1 for shielding gas were taken in the analysis.Mixed solution of thiourea and ascorbic acid was added to the sample solution as pre-reductant.Linear relationship between the fluorescence intensity and mass concentration of As… Expand