电感耦合等离子体原子发射光谱法测定杨树叶中铜锌铅镍
Inductively Coupled Plasma-Atomic Emission Spectrometric Determination of Copper,Zinc,Lead and Nickel in Poplar Leaves
摘 要
研究了电感耦合等离子体原子发射光谱法(ICP-AES)的仪器工作参数,溶液提升速率为2.4 mL·min-1,雾室压力为2.07×105Pa,观测高度为16 mm.用浓硝酸1 mL作样品的消化剂.用此方法测定杨树叶标准物质(GBW 07604)中铜、锌、铅、镍,相对误差在0.54%~9.3%之间,加标回收率在97.9%~101.0%之间.
杨树叶
铜
锌
铅
镍
ICP-AES
Poplar leaves
Copper
Zinc
Lead
Nickel
Abstract
ICP-AES was applied to the determination of Cu,Zn,Pb and Ni in poplar leaves.Optimum conditions of operation of instrument and of sample digestion were studied and the following results were obtained: ① lifting rate of solution: 2.4 mL·min-1;② presure of atomization chamber: 2.07×105Pa;③ observation height: 16 mm (on coil);④ sample digestion: 1 mL of conc,HNO3 used for digestion of 0.3 g of sample.The proposed method has been applied to the analysis of a CRM (GBW 07604) sample,the values of relative error of the 4 elements were in the range of 0.54%-9.3%,and values of recovery were in the range of 97.9%-101.0%.
中图分类号 O657.31
所属栏目 工作简报
基金项目
收稿日期 2005/7/25
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备注戚琦(1971-),女,江西赣州人,讲师,硕士,研究方向为原子发射光谱分析.
引用该论文: QI Qi. Inductively Coupled Plasma-Atomic Emission Spectrometric Determination of Copper,Zinc,Lead and Nickel in Poplar Leaves[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2007, 43(3): 211～212
戚琦. 电感耦合等离子体原子发射光谱法测定杨树叶中铜锌铅镍[J]. 理化检验－化学分册, 2007, 43(3): 211～212
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参考文献
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【3】郭雷,方肇伦,于学敏.植物组织灰分中常量、微量及痕量元素的电感耦合等离子体发射光谱分析[J].光谱学与光谱分析,1984,4(6):56-61．
【4】孙雅茹,刘春兰,曾宪津,等.电感耦合等离子体发射光谱法同时测定植物样品中多种元素[J].分析化学,1992,20(6):657-659．
【5】Suo You Rui.Phosphoric acid,nitric acid,and hydrogen peroside digestion of soil and plant Materials for selenium determination[J].Anal Chem,1987,59:2730-2732．
【6】Alfani A,Bartoli G,Rutigliano F A,et al.Trace metal biomonitoring in the soil and the leaves of quercus Ilex in the urban area of naples[J].Biological Trace Element Research,1996,51:117-131．
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