Quantitative methods for electron microprobe analysis of sodium in natural and synthetic glasses
Quantitative methods for electron microprobe analysis of sodium in natural and synthetic glasses
复制标题
天然和合成玻璃中钠的电子微探针分析定量方法
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
H. Sigurdsson
中科院分区：
文献类型：
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作者：
C. H. Nielsen;H. Sigurdsson
两种方法已经开发的天然和合成玻璃中的钠的微探针分析，表现出随时间变化的电子轰击过程中的元素迁移。低温方法是基于将样品冷却至-90 ° C，在该温度下，钠从激发体积的扩散速率降低至零。经验校正方法确定的钠衰变曲线的形状作为时间的函数在电子轰击，在正常的操作条件下，通过外推给出初始钠浓度。
Two methods have been developed for the microprobe analysis of Sodium in natural and synthetic glasses that exhibit time-dependent element migration during electron bombardment. A cryogenic method is based on the cooling of the sample to -90oC at which temperature sodium diffusion rate from the excitation volume is reduced to z€ro. An empirical correction method determines the shape of the sodium decay curve as a function of time during electron bombardment, which under normal operating conditions, gives initial sodium concentration by extrapolation.