Influence factor of the detection limit of portable X-ray fluorescence instrument

Haiyan DU; Wanchang LAI; Xiyu SHI; Cheng CHEN; Yan HU; Rui ZHAO

doi:10.11889/j.0253-3219.2018.hjs.41.010202

您当前的位置：

首页 >

文章列表页 >

Influence factor of the detection limit of portable X-ray fluorescence instrument

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | 更新时间：2021-05-19

- Influence factor of the detection limit of portable X-ray fluorescence instrument
- NUCLEAR TECHNIQUES Vol. 41, Issue 1, Article number: 010202(2018)
- 作者机构：
  
  成都理工大学成都 610059
- 作者简介：
- 基金信息：
  
  the National 863 Program
- DOI：10.11889/j.0253-3219.2018.hjs.41.010202
  CLC： TL99
- Received：14 December 2016，
  
  Revised：21 July 2017，
  
  Published：10 January 2018
- 稿件说明：
移动端阅览
Haiyan DU, Wanchang LAI, Xiyu SHI, et al. Influence factor of the detection limit of portable X-ray fluorescence instrument[J]. Nuclear techniques, 2018, 41(1): 010202
DOI：

Haiyan DU, Wanchang LAI, Xiyu SHI, et al. Influence factor of the detection limit of portable X-ray fluorescence instrument[J]. Nuclear techniques, 2018, 41(1): 010202 DOI： 10.11889/j.0253-3219.2018.hjs.41.010202.

摘要

讨论了便携式能量色散型X荧光仪检出限受背景扣除方法、管电压与管电流的影响。采用空白样扣本底法、线性本底扣除法、斯托林斯基法（Sterlinski）三种方法扣本底，试验了与之适宜的管电压与管电流范围，比较了三种方法的优缺点。检出限与测定限存在一定的对应关系，利用检出限得到测定限，对低含量的样品进行了定量的分析。为降低检出限值和更准确地测量低含量金属元素在背景扣除方法、测量条件等方面的选择提供参考。

Abstract

Background

The study of the detection limit of X-ray fluorescence instrument is of great significance

as it is widely used in the analysis of low content elements because of its excellent performance.

Purpose

To reduce the detection limit and measuring low content of metal elements more accurately

we provided reference for the choice of background subtraction methods and measurement conditions

etc

Methods

This paper studied the influence factors for the detection limit of the portable X-ray fluorescence instrument

such as background subtraction method

tube voltage and tube current. Blank sample-

linear-and Sterlinski-background subtraction methods were used to subtract the backgrounds and the suitable tube voltage and tube current range were tested. Certain corresponding relationship exists between detection limit and determination limit

so the determination limit was obtained using the detection limit

and the low content samples were analyzed.

Results

Detection limit varies with tube voltage and tube current due to different background subtraction methods. The suitable tube voltage range of blank sample background subtraction is 28-40 kV and tube current range is 18-24mA

while that of linear background subtraction and Sterlinski background subtraction is 24-26 kV

28-40 kV and 12-14 mA

18-40 mA correspondingly.

Conclusion

Blank sample background subtraction is the best

followed by Sterlinski background subtraction

while linear background subtraction is not suitable for the low content element analysis. Each background subtraction method has its suitable tube voltage and tube current range. When the content of elements is equal to the detection limit

the signal of the element detected is reliable

but it can not be used in quantitative analysis.

关键词

Keywords

references

L L Yu , J D Fassett , W F Guthrie . Detection limit of isotope dilution mass spectrometry . Analytical Chemistry , 2002 . 74 ( 15 ): 3887 - 3891 . DOI: 10.1021/ac011254l http://doi.org/10.1021/ac011254l .

李海峰 . 检出限几种常见计算方法的分析和比较 . 光谱实验室 , 2010 . 27 ( 6 ): 2465 - 2469 . DOI: 10.3969/j.issn.1004-8138.2010.06.082 http://doi.org/10.3969/j.issn.1004-8138.2010.06.082 .

Haifeng LI . Comparison of several calculation methods of detection limit . Spectroscopy Laboratory , 2010 . 27 ( 6 ): 2465 - 2469 . DOI: 10.3969/j.issn.1004-8138.2010.06.082 http://doi.org/10.3969/j.issn.1004-8138.2010.06.082 .

包生祥 . X射线荧光光谱分析检出限计算公式 . 光谱学与光谱分析 , 1992 . 12 ( 4 ): 93 - 96 . http://www.docin.com/p-852388869.html .

Shengxiang BAO . Calculation formula of X-ray fluorescence spectrum analysis detection limit . Spectroscopy and Spectral Analysis , 1992 . 12 ( 4 ): 93 - 96 . http://www.docin.com/p-852388869.html .

孙平蕙 . X射线荧光光谱分析痕量稀土元素检出限的研究 . 光谱学与光谱分析 , 1994 . 14 ( 2 ): 121 - 124 . http://www.cqvip.com/QK/90993X/199402/1340928.html .

Pinghui SUN . X-ray fluorescence spectrum analysis rare earth elements detection limit research . Spectroscopy and Spectral Analysis , 1994 . 14 ( 2 ): 121 - 124 . http://www.cqvip.com/QK/90993X/199402/1340928.html .

D A Armbruster , M D Tillman , L M Hubbs . Limit of detection (LQD)/limit of quantitation (LOQ): comparison of the empirical and the statistical methods exemplified with GC-MS assays of abused drugs . Clinical Chemistry , 1994 . 40 ( 1 ): 1233 - 1238 . http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.510.6671 .

梁国立 , 邓赛文 , 吴晓军 , . X射线荧光光谱分析检出限问题的探讨与建议 . 岩矿测试 , 2003 . 22 ( 4 ): 291 - 296 . DOI: 10.3969/j.issn.0254-5357.2003.04.010.LIANG http://doi.org/10.3969/j.issn.0254-5357.2003.04.010.LIANG .

Guoli LIANG , Saiwen DENG , Xiaojun WU , . Discussion on the detection limit in X-ray fluorescence spectrometic analysis . Rock and Mineral Analysis , 2003 . 22 ( 4 ): 291 - 296 . DOI: 10.3969/j.issn.0254-5357.2003.04.010 http://doi.org/10.3969/j.issn.0254-5357.2003.04.010 .

马旻 , 刘江斌 . 对X射线荧光光谱分析检出限公式的认识 . 甘肃地质 , 2011 . 33 ( 2 ): 73 - 75 . http://www.doc88.com/p-5098200721659.html .

Yan MA , Jiangbin LIU . X-ray fluorescence spectrum analysis detection limit formula . Gansu Geology , 2011 . 33 ( 2 ): 73 - 75 . http://www.doc88.com/p-5098200721659.html .

杨红 , 王新海 , 周德云 , . X射线荧光光谱法测定铁矿石中As含量 . 冶金分析 , 2003 . 23 ( 5 ): 62 - 64 . DOI: 10.3969/j.issn.1000-7571.2003.05.020 http://doi.org/10.3969/j.issn.1000-7571.2003.05.020 .

Hong YANG , Xinhai WANG , Deyun ZHOU , . Determination of arsenic in iron mine by X-ray fluorescence spectrometry . Metallurgical Analysis , 2003 . 23 ( 5 ): 62 - 64 . DOI: 10.3969/j.issn.1000-7571.2003.05.020 http://doi.org/10.3969/j.issn.1000-7571.2003.05.020 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence of backscattered electrons on exit beam of miniature transmission X-ray tube using Geant4

Application of improved Simpson-SNIP algorithm in background subtraction of airborne gamma-ray instrument spectrum

The off-line analysis of multiparameter experimental data

Related Author

ZENG Guoqiang

GU Yi

ZHANG Qingxian

LI Guodong

ZHANG Lei

DAI Wei

SUN Tiantian

WANG Ming

Related Institution

College of Nuclear Technology and Automation Engineering, Chengdu University of Technology

Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province, Chengdu University of Technology

The College of Nuclear Technology and Automation Engineering, Chengdu University of Technology

Shanghai Institute of Nuclear Research, Academia Sinica

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：880473

⁰