光谱学与光谱分析, 2012, 32 (5): 1391, 网络出版: 2012-06-14
微波消解-ICP-AES法测定钒钛矿区优势植物中重金属含量
Determination of Heavy Metals in Dominant Plant Species in Vanadium/Titanium Mine Area by Microwave Digestion-ICP-AES
摘要
采用微波消解——电感耦合等离子发射光谱法(ICP-AES)对攀枝花某钒钛矿区十种优势植物地上部分和地下部分中Pb, Zn, Cu, Cr, Cd, Ti等无机元素含量进行了测定。 结果表明, 该方法相对标准偏差均在5.0%以下, 通过加标回收实验, 回收率在92.90%-103.85%之间, 与传统的方法相比, 本法具有较好的准确度和精密度, 且灵敏度较高, 能同时测量多种元素等优点。
Abstract
Ten kinds of dominant plants in Vanadium/Titanium mine area were collected, the contents of heavy metals including Pb, Zn, Cu, Cr, Cd and Ti of which aboveground and underground parts were determined by ICP-AES using microwave digestion, respectively. All samples of the plants were digested with HNO3-H2O2 system. The relative standard deviation was less than 5% for all the elements, and the recoveries were 92.90%~103.85% by adding standard recovery experiment. This method was simple, sensitive and precise and can perform simultaneous multi-elements determination compared with conventional method of the plants determination, which could satisfy the sample examination request and provide scientific rationale for determining inorganic elements of plants.
杨刚, 袁大刚, 钟贵江, 伍钧. 微波消解-ICP-AES法测定钒钛矿区优势植物中重金属含量[J]. 光谱学与光谱分析, 2012, 32(5): 1391. YANG Gang, YUAN Da-gang, ZHONG Gui-jiang, WU Jun. Determination of Heavy Metals in Dominant Plant Species in Vanadium/Titanium Mine Area by Microwave Digestion-ICP-AES[J]. Spectroscopy and Spectral Analysis, 2012, 32(5): 1391.