Application of the ART-2a algorithm to laser ablation aerosol mass spectrometry of particle standards

被引：71
作者：
Phares, DJ
Rhoads, KP
Wexler, AS
Kane, DB
Johnston, MV
机构：
[1] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA
[2] Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA
来源：
ANALYTICAL CHEMISTRY | 2001年 / 73卷 / 10期
关键词：
D O I：
10.1021/ac0015063
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Single-particle mass spectrometers are now commonly used to analyze atmospheric particles and generate tens of thousands of spectra from typical measurement campaigns. The ART-2a spectrum algorithm has been used to classify these spectra. In this work, we generate a range of particles that are models of those that are common in the atmosphere. A single-particle mass spectrometer is used to analyze these known particles, and the spectra are classified using ART-2a. The optimum vigilance parameter is similar to0.5 while the optimum learning rate is similar to0.05. The classifications elucidate limitations in generation of test particles, their analysis by single-particle techniques, and their classification by ART-2a.
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收藏
页码：2338 / 2344
页数：7
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