摘要
[目的]研究火炭母中11种微量元素的含量.[方法]分别用干法灰化和湿法消解处理火炭母,火焰原子吸收光谱法测定火炭母中Fe、Mg、Ca、K、Cu、Pb、Cr、Cd、Zn、Mn和Ni 11种微量元素的含量.[结果]所测的各微量元素的校准曲线的相关系数为0.998 9～0.9998,回收率为96.83％～ 100.81％,方法检出限为0.003 8 ～0.042 1 mg/L,相对标准偏差＜1.0％;Fe、Mg、Ca、K、Zn、Mn这6种微量元素含量较高,而Cu、Pb、Cr、Cd、Ni这5种微量元素含量较少.[结论]该研究为火炭母的进一步开发利用提供理论参考.
Abstract
[Objective] To research the contents of eleven microelements in Polygonum Chinense Linn.[Method] Dry-ashing and wet digestion were used to process P.Chinense.The contents of eleven microelements in P.Chinense were detected by flame atomic absorption spectroscopy,including Fe,Mg,Ca,K,Cu,Pb,Cr,Cd,Zn,Mn and Ni.[Result] The correlation coefficients of the calibration curve,the recovery range and the detection limit of each microelement were 0.998 9-0.999 8,96.83 ％-100.81％,0.003 8-0.042 1 mg/L,respectively.The relative standard deviation of each microelement was less than 1.0％.Contents of Fe,Mg,Ca,K,Zn and Mn were relatively high;while those of Cu,Pb,Cr,Cd and Ni were relatively low.[Conclusion] This research provides theoretical references for the further development and utilization of P.Chinense.
国家科技期刊平台
NSTL
维普
万方数据