Atomization of vanadium in a graphite furnace: Experimental and theoretical modelling of surface interactions

被引:13
作者
Benzo, Z [1 ]
Montero, T [1 ]
Quintal, M [1 ]
Sierraalta, A [1 ]
Ruette, F [1 ]
机构
[1] INST VENEZOLANO INVEST CIENT, CTR QUIM, LAB QUIM COMPUTAC, CARACAS 1020A, VENEZUELA
关键词
vanadium; electrothermal atomic absorption spectrometry; theoretical modelling; acid interference;
D O I
10.1039/ja9961100445
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Experimental and theoretical modelling of the atomization of V on a graphite surface has been carried out in order to study the activity inherent to the surface. The most important variables and interactions on atomization of V have been investigated using factorial designs and response surface methodology. The effect of mineral acids on the memory effects usually encountered during the electrothermal atomization of V in graphite atomizers has been evaluated by modelling the coadsorption of protons on the graphite surface.
引用
收藏
页码:445 / 452
页数:8
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