Determination of Trace Elements in Lophatherum Gracile Brongn from Different Habitat by Microwave Digestion-Atomic Absorption Spectroscopy

被引:2
作者
Yuan Ke [1 ]
Xue Yue-qin [1 ]
Gui Ren-yi [1 ]
Sun Su-qin [2 ]
Yin Ming-wen [3 ]
机构
[1] Zhejiang Forestry Univ, Res & Dev Ctr Nat Med, Linan 311300, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
[3] Zhengzhou Univ, Dept Chem, Zhengzhou 450052, Peoples R China
关键词
Microwave digestion; Atomic absorption spectrometry method; Lophatherum gracile; Trace elements;
D O I
10.3964/j.issn.1000-0593(2010)03-0804-05
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
A method of microwave digestion technique was proposed to determine the content of Zn, Fe, Cu, Mn, K, Ca, Mg, Ni, Cd, Pb, Cr, Co, Al, Se and As in lophatherum gracile brongn of different habitat by atomic absorption spectroscopy. The RSD of the method was between 1.23% and 3.32%, and the recovery rates obtained by standard addition method were between 95.8% and 104.2%. The results of the study indicate that the proposed method has the advantages of simplicity, speediness and sensitivity. It is Suitable for the determination of the contents of metal elements in lophatherum gracile brongn. The experimental results also indicated that different areas' lophantherum gracile brongn had different trace elements content. The content of trace element,, K, Mg, Ca, Fe and Mn beneficial to the human body was rich. The content of the heavy metal trace element Pb in lophantherum gracile brongn of Hunan province was slightly high. The content of the heavy metal trace element Cu in lophantherum gracile brongn of Guangdong province and Anhui province is also slightly higher. Beside, the contents of harmful trace heavy metal elements Cd, Cu, Cr, Pb and As in lophatherum gracile brongn of different habitat arc all lower than the limits of Chinese Pharmacopoeia and Green Trade Standard for Importing and Exporting Medicinal Plant and Preparation and National Food Sanitation Standard. These determination results provided the scientific data for further discussing the relationship between the content of trace elements in lophantherum gracile brongn and the medicine efficacy.
引用
收藏
页码:804 / 808
页数:5
相关论文
共 11 条
[1]  
GAO Zhi-qiang, 2005, J SW U NATL, V31, P38
[2]  
GONG JY, 2002, STUDIES TRACE ELEMEN, V19, P68
[3]  
[郭春梅 Guo Chunmei], 2005, [分析测试学报, Journal of Instrumental Analysis], V24, P42
[4]  
Kou X.M., 1999, SICHUAN ENV, V18, P28
[5]  
LI YH, 2002, J HUBEI COLL TCM, V4, P17
[6]  
Lu Z., 2004, J CENTRAL S FORESTRY, V24, P70
[7]  
[王慧琴 WANG Huiqin], 2006, [厦门大学学报. 自然科学版, Journal of Xiamen(Natural Science)], V45, P72
[8]  
XU G, 2001, ACTA NUTR SINICA, V23, P79
[9]  
ZHANG SB, 2005, CHINESE J HLTH LAB T, V15, P46
[10]  
Zhou YS, 2008, SPECTROSC SPECT ANAL, V28, P1172