These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Determination of heavy metal in Chinese herbs].
    Author: Li X, Gao J, Zhao J.
    Journal: Wei Sheng Yan Jiu; 2002 Aug; 31(4):295-7. PubMed ID: 12600046.
    Abstract:
    Microwave digestion system was used in digesting samples. Lead and cadmium were determined by graphite furnace atomic absorption spectrometry. Mercury was determined by cold vapor atomic absorption spectrometry. Standard reference material (NBS1570), spinach powder was used as analysis quality assurance in this method, and 264 Chinese herbs (23 species) and standard reference material were determined, and satisfactory results were obtained by using this method. Averages recovery of lead, cadmium and mercury is 95.0%, 97.5% and 99.2% respectively. Limit of detection (LOD) is 0.006 mg/kg, 0.208 microgram/kg and 0.026 microgram/kg respectively for lead, cadmium and mercury. Limit of quantity (LOQ) is 0.019 mg/kg, 0.694 microgram/kg and 0.087 microgram/kg respectively for lead, cadmium and mercury. This method is also suitable to determine lead, cadmium and mercury in food.
    [Abstract] [Full Text] [Related] [New Search]