水菖蒲中金属元素的形态分析  

A Speciation Analysis of Trace Elements in Acorus Calamus L.by Flame Atomic Adsorption Spectrometry

作　　者：叶艳青[1] 王炯[1] 宋爽[1] 段利平[1] 念晓 

机构地区：[1]云南民族大学化学与生物技术学院,云南昆明650031 [2]西双版纳州食品药品检验所,云南景洪666100

出　　处：《云南民族大学学报（自然科学版）》2009年第4期328-331,共4页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：国家民委-教育部共建民族药资源化学重点实验室项目(MJY07006);国家民委本科教学改革与质量建设项目;云南民族大学重点专业建设项目

摘　　要：按照传统煎煮法对中药水菖蒲中钙、镉、铬、铜、锌、铁、锰和镁8种元素进行提取；用微孔滤膜分离提取液中的可溶态与悬浮态；利用大孔吸附树脂柱对可溶态中的有机态与无机态进行分离；采用火焰原子吸收光谱法对各种形态中的8种元素含量进行测定．结果显示水菖蒲中8种元素在可溶态中的总提取率在16．89％-89．60％，浸留比在20．64％～848．5％，悬浮态颗粒吸附率在1．36％-33．31％，可溶态中铬的有机态与无机态的比例为129．4％，镁、钙、锰、铁、锌、铜、镉的有机态与无机态的比例在3．42％-72．82％之间．该法对各元素的加标回收率在92．4％-113．2％，相对标准偏差RSD小于2．51％．The eight elements, Ca, Cd, Cr, Cu, Zn, Fe, Mn and Mg, in Acorus calamus L. have been extracted based on the traditional analytical flowchart program and separated into the water - soluble state and the suspension state by the micro - porous filtering film. The water - soluble state has been divided into the organic state and the inorganic state based on the macro - porous adsorption resin. The elements have been detected by flame atomic adsorption spectrometry （FAAS）. The results show that the extractive rates of the elements are in the range of 16.89%--89.60% and immerse - residue ratio in 20.64%--848.5%. the adsorption ratio of suspension state is about 1.36%--33.31%. The ratio of the organic state to the inorganic state of Cr in the water -soluble state is 129.4% and the ratios of Mg, Ca, Mn, Fe, Zn, Cu and Cd are in the range of 3.42%--72.82%. The recovery ratios by the standard addition are in the range of 92.4%--113.2% and the relative standard deviations （RSD） are less than 2.51%.

关 键 词：水菖蒲 金属元素 火焰原子吸收光谱法 形态分析 

分 类 号：R931[医药卫生—生药学] O657.31[医药卫生—药学]