摘要
为从元素的角度比较钩藤钩、茎2个药用部位元素的差异,以采集的贵州剑河钩藤钩、茎2个部位混合样品为试材,采用电感耦合等离子体质谱仪(ICP-MS),测定分析了2个药用部位微量元素(K、Ca、Mg、Na、Fe、Mn、Cu、Zn、Mo Co)和重金属元素(Pb、Cr、Hg、As、Cd)的含量。结果表明:贵州剑河钩藤茎中微量元素Na、Mg、K、Ca、Mn、Co、Zn的含量大于钩中的含量,钩、茎中微量元素最高含量均为K,其次为Ca;重金属元素Cr、Cd、Pb在茎中的含量略高于钩中含量,Hg在钩中含量高于茎中含量,且有部分超标,Cu、As在钩、茎中的含量接近。微量元素的分析验证了钩藤茎的药用潜力,钩藤Zn/Cu比值较低(0.52),验证了钩藤治疗高血压等方面的药效,且钩的Zn/Cu比小于茎,说明钩可能有更好的药效。
Taking the mixed sample with hooks and stems of Uncaria rhynchophylla collected from Jianhe county in Guizhou as material,the contents of trace elements（K,Ca,Mg,Na,Fe,Mn,Cu,Zn,Mo,Co）and heavy metal elements（Pb,Cr,Hg,As,Cd）were measured by using ICP-MS,to analyze the major characteristics of trace elements and heavy metal elements in different parts of Uncaria rhynchophylla.The results showed that the contents of Na,Mg,K,Ca,Mn,Co,Zn in the stems were higher than that in hooks;the highest content of trace element was K,followed by Ca.Contents of heavy elements Cr,Cd and Pb in stems were higher than in hooks;Hg was opposite and contents of Cu and As in hooks and stems were very close.Zn/Cu ratio of hooks was lower（0.52）,which indicated the hook might have better efficacy.
出处
《北方园艺》
CAS
北大核心
2016年第16期156-159,共4页
Northern Horticulture
基金
贵州省国际科技合作计划资助项目(黔科合外G字[2013]7034号)
贵州省中药现代化重大专项资助项目(黔科合重大专项字[2012]6010号)
