Studies on the Element Characteristics of Nephrite Minerals from Different Deposits by GD-MS  

作　　者：Siqinbilige Qian, Rong Zhuo, Shangjun Gan, Fuxi 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China [2]Shanghai Mass Spectrometry Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China [3]Fudan University, Shanghai 200433, China

出　　处：《Chinese Journal of Chemistry》2011年第6期1251-1255,共5页中国化学（英文版）

基　　金：Project supportect by the National Natural Science Foundation of~China （No. 51072208）, the Startup Funding of Chinese Academy of Sciences （No. O87YQ1110G）, the Plan of the Creative Funding of Shanghai Institute of Ceramics, Chinese Academy of Sciences （No. O97ZC1110G）, and the Plan of the Creative Funding of the Ministry of Science and Technology of the People＇s Republic of China （No. 2009IM031100）.

摘　　要：Element characteristics of nephrite minerals were determined by glow discharge mass spectrometry （GD-MS） through surface adherence method. To solve the conductivity problem of non-conductive nephrite samples, high purity indium pin （〉99.9999%） was used as discharge host. During the preparation procedure, a small piece of nephrite sample was ground into powder （about 200 meshes）, and then the sample powder was coated on the surface of indium pin to form a rod sample. Typical elements of nephrite minerals were analyzed by GD-MS, and the relative standard deviations showed that the stability and reproducibility of this method were good. Meanwhile, four nephrite samples from two different deposits were further studied by this method. The GD-MS results of major elements and trace elements revealed that typical elements of the nephrite minerals from same deposit were similar, and those from different deposits exhibited significant difference. In addition, results of external-beam proton induced X-ray emission （PIXE） were consistent with the result of GD-MS determination. The present approach had been proven to be simple, efficient to perform the rapid screening and multi-element semi-quantitative analysis of nephrite samples.Element characteristics of nephrite minerals were determined by glow discharge mass spectrometry （GD-MS） through surface adherence method. To solve the conductivity problem of non-conductive nephrite samples, high purity indium pin （〉99.9999%） was used as discharge host. During the preparation procedure, a small piece of nephrite sample was ground into powder （about 200 meshes）, and then the sample powder was coated on the surface of indium pin to form a rod sample. Typical elements of nephrite minerals were analyzed by GD-MS, and the relative standard deviations showed that the stability and reproducibility of this method were good. Meanwhile, four nephrite samples from two different deposits were further studied by this method. The GD-MS results of major elements and trace elements revealed that typical elements of the nephrite minerals from same deposit were similar, and those from different deposits exhibited significant difference. In addition, results of external-beam proton induced X-ray emission （PIXE） were consistent with the result of GD-MS determination. The present approach had been proven to be simple, efficient to perform the rapid screening and multi-element semi-quantitative analysis of nephrite samples.

关 键 词：glow discharge mass spectrometry NEPHRITE element characteristics trace analysis 

分 类 号：S831.5[农业科学—畜牧学] TS933.21[农业科学—畜牧兽医]