摘要
本文利用作者最近提出的新方法，测得金从热解石墨管表面原子化的动力学级数为０．３１±０．０３、活化能为７０±２ｋｃａｌ·ｍｏｌ－１。当金的进样量在０．２５～２ｎｇ范围内，金原子化的活化能和动力学级数几乎不受样品量的影响。此外，根据实验结果，讨论了金的原子化机理。
The kinetic order and activation energy for gold atomization from a pyrolyticallycoated graphite surface are determined to be 0. 31 ±0. 03 and 7012 Keal/mol, respectively,by using a recently proposed method. No analyte amount dependence of the measured kineticorder and activation energy for gold is found in the range of 0. 25-2 ng. The mechanism ofgold atomization is evaluated based on the measured kinetic parameters.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1994年第5期59-62,共4页
Spectroscopy and Spectral Analysis
基金
中国科学院八五重点项目
