Determination of microelements in Codonopsis Radix by inductively coupled plasma-mass spectrometry
Fude Yang1,2, Haiming Lin1* and Rui Ding2
1Gansu Agricultural University, Lanzhou 730070, P. R. China
2Gansu College of Traditional Chinese Medicine, Lanzhou 730000, P. R. China
3Ningxia Institute for Food and Drug Control, Yinchuan 750004, P. R. China
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