Determination of Rare Earth Impurities in High Purity Zirconium Dioxide by Electrothermal Vaporization Inductively Coupled Plasma Atomic Emission Spectrometry Using 1-Phenyl-3-Methyl-4-Benzoyl-5-Pyrazone as Extractant and Chemical Modifier
作者:
Shizhong Chen,
Tianyou Peng,
Zucheng Jiang,
期刊:
Analytical Letters
(Taylor Available online 1999)
卷期:
Volume 32,
issue 2
页码: 411-421
ISSN:0003-2719
年代: 1999
DOI:10.1080/00032719908542829
出版商: Taylor & Francis Group
关键词: Electrothermal vaporization;inductively coupled plasma atomic emission spectrometry;high purity zirconium dioxide;rare earth element;rare earth–PMBP chelate
数据来源: Taylor
摘要:
A novel method has been developed for the determination of trace La, Eu and Y in high purity ZrO2by electrothermal vaporization inductively coupled plasma atomic emission spectrometry (ETV-ICP-AES) with 1-phenyl-3-methyl-4-benzoyl-5-pyrazone (PMBP) as extractant and chemical modifier. The matrix was quantitatively separated from the selected elements in 6M HNO3medium by extraction with 0.1M PMBP in chloroform. The vaporization behaviors, effect factors and analytical characteristics of above selected elements were investigated in detail. Under the optimized conditions, the detection limits were 8.0, 0.9 and 1.0ng ml−1for La, Eu and Y with the relative standard deviations of 3.3, 3.4 and 4.0% (n=7, c=0.5 μg ml−1), respectively. The proposed method has been applied to determine trace impurities in ZrO2.
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