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Evaluation of chemical speciation on Lp (p = l, α, η, β) X-ray emission peaks of thallium compounds with a wavelength-dispersive spectrometer
Journal of Analytical Atomic Spectrometry ( IF 3.4 ) Pub Date : 2020-10-02 , DOI: 10.1039/d0ja00379d
Harpreet Singh Kainth 1, 2, 3, 4 , Deeksha Khandelwal 4, 5, 6
Affiliation  

The measurements of X-ray emission lines in atomic decay to the L-shell of thallium compounds were performed using a laboratory source-based conventional wavelength dispersive spectrometer. A large set of physical fundamental parameters such as X-ray transition energies, natural linewidths and relative transition probabilities were determined by robust spectral fitting trials. The current effort presents valuable intuition about the chemical effect in distinct thallium compounds, viz., pure Tl, TlX [X = (NO3)3, I, and Cl], and Tl2X (X = O3 and SO4) on the Lp (p = l, α, η, β) X-ray lines. The investigation of chemical effects is one of the highly pressing tasks in understanding the various physical fundamental parameters in distinct metal-compounds. The results illustrate that the Lp (p = l, α, η, β) X-ray lines emitted from various thallium targets show energy shifts of ∼0.03–3.39 eV relative to the pure thallium target. In general, the outcomes of this study are consistent with the published data associated with the framework of the atomic Hartree–Fock (AHF), relativistic many-body problems in atoms and semi-empirical procedure developed within intermediate coupling calculations. For the first time, several physical fundamental parameters of thallium compounds have been investigated in this work, which are likely due to the adoption of robust spectral fitting procedures. The abruptly deviating peak profile variations found in distinct thallium-based metal-compounds can be reflected in the viewpoint of the linewidth, different electronegativity values of adjacent ligands, effective charge, changes in the transition probability, mixed oxidation states of thallium and valence to core exchange interactions. Furthermore, in the current study, the possible connection among X-ray line shifts and parameters are systematically scrutinised.

中文翻译:

用波长分散光谱仪评估化合物的Lp(p = l,α,η,β)X射线发射峰的化学形态

原子衰变到wavelength化合物L壳的X射线发射线的测量是使用基于实验室光源的常规波长色散光谱仪进行的。大量的物理基本参数(例如X射线跃迁能量,自然线宽和相对跃迁概率)通过稳健的光谱拟合试验确定。当前的努力提出了关于不同distinct化合物的化学作用的宝贵直觉,即。L p上的纯Tl,TlX [X =(NO 33,I和Cl]和Tl 2 X(X = O 3和SO 4(p = l,α,η,β)X射线线。化学作用的研究是了解不同金属化合物中各种物理基本参数的一项紧迫任务。结果表明,L p(p = l,α,η,β)从各种various靶发出的X射线线相对于纯pure靶显示出约0.03-3.39 eV的能量位移。总的来说,这项研究的结果与已发表的与原子Hartree-Fock(AHF)框架,原子中的相对论性多体问题以及在中间耦合计算中发展的半经验过程有关的数据是一致的。首次在这项工作中研究了compounds化合物的几个物理基本参数,这很可能是由于采用了可靠的光谱拟合程序所致。在不同的,基金属化合物中发现的突然偏离的峰轮廓变化可以从线宽,相邻配体的不同电负性值,有效电荷,转变概率的变化,mixed的混合氧化态和化合价之间的相互作用。此外,在当前的研究中,系统地研究了X射线线位移和参数之间的可能联系。
更新日期:2020-11-03
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