赤芍中7种微量元素的形态分析  

Speciation Analysis of the 7 Microelements in Paeoniae Padix Rubra

作　　者：李萌 陶凌云[2] 任树林[3] 

机构地区：[1]延安市食品药品检验所,陕西省延安市宝塔区王家坪旧址131号716000 [2]延安市疾病预防控制中心,陕西省延安市宝塔区枣园路风情街15号716000 [3]延安大学化学与化工学院,陕西省延安市宝塔区圣地路279号716000

出　　处：《光谱实验室》2014年第3期337-340,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：延安大学自然科学专项基金项目（YDZ2013.11）

摘　　要：对赤芍中Fe、h他、Cu、Zn、Mg、Al和Sr7种微量元素的化学形态进行了分析研究.用传统的煎煮法先进行元素提取，然后分别采用0．45μm微孔滤膜、LSA-10大孔吸附树脂柱、正辛醇／水分配体系，区分元素的可溶态和悬浮态、有机态和无机态、醇溶态和水溶态，最后用电感耦合等离子体-原子发射光谱法（ICP-AES）对湿法消解后的各种元素进行测定。结果表明：7种元素的提取率在27．9％-71．2％，悬浮态的颗粒吸附率在7．7％一54．5％，加标回收率在95．4％-102．4％，检出限为22-14．7μg·L^-1，RSD≤3．1％。To study the chemical speciation of the 7 microelements, Fe, Mn, Cu, Zn, Mg, Al and Sr in paeoniae padix rubra, these elements were divided into the soluble and suspended species, organic and inorganic species, the n-C8H17OH-soluble species and water-soluble species by 0.45μm membrane, LSA-10macroporous resin, the n-C8H17OH-water extraction system respectively after extracted based on traditional analytical flowchart program. The contents of the 7 microelements were determined by inductively coupled plasma atomic emission spectrometry （ICP-AES）. The results showed that extractive rates of the elements were in the range of 27.9%--71.2% in the decoction. Adsorption ratio of suspension state was in the range of 7.7%--54.5%. The recovery ratios by standard addition were in the range of 95.4%--102.4% and the detection limit of 7 microelements was in the range of Z2-14.7μg·L^-1,RSD≤3.1%.

关 键 词：赤芍 微量元素 电感耦合等离子体-原子发射光谱法 形态分析 

分 类 号：O657.31[理学—分析化学]