SINGLE-PARTICLE CHARACTERIZATION BY TIME-OF-FLIGHT MASS-SPECTROMETRY

被引:56
作者
REENTS, WD
DOWNEY, SW
EMERSON, AB
MUJSCE, AM
MULLER, AJ
SICONOLFI, DJ
SINCLAIR, JD
SWANSON, AG
机构
[1] AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ
关键词
D O I
10.1080/02786829508965311
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
We have built a particle analyzer capable of real-time detection and characterization of individual particles. Particle analysis is accomplished by pulsed laser ablation of a particle followed by time-of-flight mass spectrometry of the resulting atomic and molecular ions. The detected ions are characteristic of a particle's molecular composition. Particles of different sizes (0.02-10 mu m) and compositions (ammonium sulfate, silica, rubidium nitrate, and cesium nitrate) have been detected and characterized. Even refractory materials, e.g. silica, are easily detected.
引用
收藏
页码:263 / 270
页数:8
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