scholarly journals Investigation of Distribution for Trace Lead and Cadmium in Chinese Herbal Medicines and Their Decoctions by Graphite Furnace Atomic Absorption Spectrometry

2011 ◽  
Vol 02 (02) ◽  
pp. 217-222 ◽  
Author(s):  
Hanwen Sun ◽  
Lixin Li
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Herbal Medicines ◽  
Absorption Spectrometry ◽  
Chinese Herbal Medicines ◽  
Chinese Herbal ◽  
Lead And Cadmium ◽  
Graphite Furnace Atomic Absorption

Determination Cadmium in Panax notoginseng of Chinese Herbal Medicine by Graphite Furnace Atomic Absorption Spectrometry Based on Biological Materials

2012 ◽  
Vol 485 ◽  
pp. 60-63
Author(s):  
Zhao Long Huang ◽  
Shao Ping Feng ◽  
Yu Da Zhang ◽  
Du Lin Kong ◽  
Ya Shun Chen ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Herbal Medicines ◽  
Absorption Spectrometry ◽  
Panax Notoginseng ◽  
Chinese Herbal ◽  
Relative Standard ◽  
Graphite Furnace Atomic Absorption ◽  
The Matrix

A graphite furnace atomic absorption spectrometry (GFAAS) method for cadmium determination in Chinese herbal medicines was prepared. In this study, 2% (NH4)2HPO4 was used as matrix modifier, which could enhance the ashing temperature and eliminate the matrix interference.Cadmium has been determined using GFAAS method with deuterium background correction. The linear ranges of cadmium was 0 to 10 µg/L and the analytical detection limits was 0.13 µg/L, respectively. The precision relative standard deviations was 3.82% and the spike recoveries range from 97.5% to 101.3%.

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