火焰原子吸收光谱法测定火炭母中微量元素  

Determination of Microelements in Polygonum Chinense Linn. by Flame Atomic Absorption Spectroscopy

作　　者：王呈文[1] 张锐龙 张彩云[1] 

机构地区：[1]汕头职业技术学院自然科学系,广东汕头515078

出　　处：《安徽农业科学》2016年第9期160-161,共2页Journal of Anhui Agricultural Sciences

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 9~0.999 8,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。[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.

关 键 词：火炭母 微量元素 火焰原子吸收光谱法 

分 类 号：S567.239[农业科学—中草药栽培]