Zhang Ji, Wang Han-Mo, Zhao Yan-Li, Zuo Zhi-Tian, Wang Yuan-Zhong, Jin Hang
Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming 650200, China.
J Anal Methods Chem. 2015;2015:530541. doi: 10.1155/2015/530541. Epub 2015 Jul 8.
Contents of eight mineral elements in maca (Lepidium meyenii Walp.) from China and Peru were determined by inductively coupled plasma optical emission spectroscopy. Cu contents in maca samples from China (2.5-31 mg kg(-1) dry weight, dw) were higher than the samples from Peru (<2.1 mg kg(-1) dw). Na in two samples from China was found to be significantly of high content (2400 and 2600 mg kg(-1) dw). The contents (mg kg(-1) dw) of B, Co, Cr, Li, Ni, and Zn were, respectively, 8.1-21, <0.023, <1.13.5, 0.020-0.17, 0.085-4.5, and 10-39 for the samples from China, while being 6.6-12, <0.023, <1.12.3, 0.035-0.063, 0.68-1.7, and 27-39 for the samples from Peru.
采用电感耦合等离子体发射光谱法测定了中国和秘鲁玛咖(Lepidium meyenii Walp.)中8种矿质元素的含量。中国玛咖样品中的铜含量(干重2.5 - 31mg kg⁻¹,dw)高于秘鲁样品(<2.1mg kg⁻¹ dw)。发现来自中国的两个样品中的钠含量显著较高(2400和2600mg kg⁻¹ dw)。中国样品中硼、钴、铬、锂、镍和锌的含量(mg kg⁻¹ dw)分别为8.1 - 21、<0.023、<1.13.5、0.020 - 0.17、0.085 - 4.5和10 - 39,而秘鲁样品中这些元素的含量分别为6.6 - 12、<0.023、<1.12.3、0.035 - 0.063、0.68 - 1.7和27 - 39。