Theoretical Investigation of Selenium Interferences in Inductively Coupled Plasma Mass Spectrometry

被引:7
作者
Bouchoux, G. [1 ,2 ]
Rashad, A. M. [3 ]
Helal, A. I. [3 ]
机构
[1] Ecole Polytech, Lab Mecanismes React, Dept Chim, F-91128 Palaiseau, France
[2] CNRS, F-91128 Palaiseau, France
[3] Atom Energy Author, Cent Lab Elemental & Isotop Anal, Nucl Res Ctr, Cairo 13759, Egypt
关键词
ION FLOW TUBE; ISOTOPE RATIO MEASUREMENTS; POTENTIAL-ENERGY SURFACE; NONCOVALENT INTERACTIONS; ATOMIC-ABSORPTION; COLLISION CELL; ICP-MS; DYNAMICS; CHEMISTRY; HEATS;
D O I
10.1021/jp304644u
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Structures, heats of formation, ionization energies, and proton affinities of selenium, argon dimer, argon-chlorine, and their hydrides (Se, SeH, SeH2, ArH, ArH2, Ar-2, Ar2H, Ar2H2, ArCl, and ArHCl) are estimated by quantum chemistry calculations using G3, G4, and W1 composite methods and coupled cluster approach at the CCSD(T)/aug-cc-pVTZ levels. Thermochemistry of the reactions between ions A(+) = Se center dot+, SeH+, SeH2 center dot+, SeH3+, Ar-2(center dot+), Ar2H+, Ar2H2 center dot+, Ar2H3+, ArCl+, ArClH center dot+, and ArClH2+ with various neutral gas G commonly used in dynamic reaction chamber-inductively coupled plasma-mass spectrometry (DRC-ICP-MS) (G = H-2, CH4, NH3, O-2, CO, CO2, NO, and N2O) has been investigated.
引用
收藏
页码:9058 / 9070
页数:13
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