Experimental Study and Correction of the Absorption and Enhancement Effect between Ti, V and Fe
TUO Xian-guo1，2,MU Ke-liang1, LI Zhe1*, WANG Hong-hui2, LUO Hui2, YANG Jian-bo1
1. Provincial Key Lab of Applied Naclear Techniques in Geosciences, Chengdu University of Technology, Chengdu 610059, China 2. State Key Lab of Geohazard Prevention & Geoenvironmental Protection, Chengdu University of Technology, Chengdu 610059, China
Abstract：The absorption and enhancement effects in X-ray fluorescence analysis for Ti，V and Fe elements were studied in the present paper. Three bogus duality systems of Ti-V/Ti-Fe/V-Fe samples were confected and measured by X-ray fluorescence analysis technique using HPGe semiconductor detector, and the relation curve between unitary coefficient (RK) of element count rate and element content (WK) were obtained after the experiment. Having analyzed the degree of absorption and enhancement effect between every two elements, the authors get the result, and that is the absorption and enhancement effect between Ti and V is relatively distinctness, while it’s not so distinctness in Ti-Fe and V-Fe. After that, a mathematics correction method of exponential fitting was used to fit the RK-WK curve and get a function equation of X-ray fluorescence count rate and content. Three groups of Ti-V duality samples were used to test the fitting method and the relative errors of Ti and V were less than 0.2% as compared to the actual results.
Key words：XRF;Absorption and enhancement effect;(Bogus)duality system;Exponential fitting;Correction method
庹先国1，2，穆克亮1，李 哲1*，王洪辉2，罗 辉2，杨剑波1 . 钛钒铁间吸收增强效应研究及其校正[J]. 光谱学与光谱分析, 2009, 29(11): 3158-3162.
TUO Xian-guo1，2,MU Ke-liang1, LI Zhe1*, WANG Hong-hui2, LUO Hui2, YANG Jian-bo1 . Experimental Study and Correction of the Absorption and Enhancement Effect between Ti, V and Fe . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(11): 3158-3162.
[1] TUO Xian-guo, LIANG Xing-zhong, ZHENG Jian-an(庹先国, 梁兴中, 郑建安). Nuclear Techniques(核技术), 1998, 21(8): 482. [2] HAN Xiao-yuan, ZHUO Shang-jun, WANG Pei-ling(韩小元, 卓尚军, 王佩玲). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2006, 26(2): 353. [3] CAO Li-guo, DING Yi-min, HUANG Zhi-qi(曹利国, 丁益民，黄志琦). Method of Energy Dispersive X-Ray Fluorescence(能量色散X射线荧光方法). Chengdu：Chengdu University of Science and Technology Press(成都：成都科技大学出版社)，1998. 137. [4] Lorc Perring, Daniel Andrey, Marija Basic-Dvorzak, et al. Journal of Food Composition and Analysis，2005, 18: 655. [5] Morgenstern P, Bruggemann L, Wennrich R. Spectrochimica Acta Part B, 2005, 60: 1373. [6] Saleh N S, Al-Saleh K A, Abu El-Haija A J. Journal of Radio Analytical and Nuclear Chemistry, 1988, 120(1): 161. [7] Cesareo R, Gigante G E, Canegallo P, et al. Nuclear Instruments and Methods in Physics Research，1996, 440. [8] Robrto Cesareo, Giovanni E Gigante, Albert L Hanson. Nuclear Instruments and Methods in Physics Research，1998，434.
