Removal of Air Interference in Laser-induced Breakdown Spectrometry Monitored by Spatially and Temporally Resolved Charge-coupled Device Measurements
Removal of Air Interference in Laser-induced Breakdown Spectrometry Monitored by Spatially and Temporally Resolved Charge-coupled Device Measurements
复制标题
通过空间和时间分辨电荷耦合器件测量监测激光诱导击穿光谱测量中空气干扰的消除
DOI：
10.1039/a605763b
复制
发表时间：
1997
影响因子：
3.4
通讯作者：
J. Laserna
中科院分区：
文献类型：
--
作者：
M. Milán;J. Vadillo;J. Laserna
激光诱导击穿光谱法是一种适用于
直接在过程中测量材料成分。发射
来自等离子体的光谱不仅包括关于分析的信息
面积也要对周围的气氛，主要是线条相对应，
O、N和C，如果实验是在大气中进行的
压力这些发射线可能会干扰样品光谱。
虽然在真空条件下工作或使用受控的
在大多数实际应用中，
在大气压力下的空气中工作的应用是
分析.进行了一项研究，以评估空气的去除
聚（甲基丙烯酸甲酯）样品中的干扰，通过使用时间
和空间分辨率的门控电荷耦合器件，没有任何样品
治疗或改变实验设置。
Laser-induced breakdown spectrometry is a suitable method for the
direct in-process measurement of materials composition. The emission
spectrum from the plasma includes information not only on the analysis
area but also on the surrounding atmosphere, mainly lines corresponding to
O, N and C if the experiments are being carried out in air at atmospheric
pressure. These emission lines could interfere with the sample spectrum.
Although working under vacuum conditions or the use of controlled
atmospheres can be considered to be the best choice, in most practical
applications working in air at atmospheric pressure is the common way of
analysis. A study was undertaken to evaluate the removal of air
interferences in poly(methyl methacrylate) samples by using the temporal
and spatial resolution of gated charge-coupled devices, without any sample
treatment or alteration of the experimental set-up.