Copper Speciation in Codonopsis Pilosulae by SPE-AAS
YU Tao,LI Jian-qiang,WU Jia-jia
Journal of Hebei University (Natural Science Edition) . 2010, (6): 671 -675 .  DOI: 10.3969/j.issn.1000-1565.2010.06.013