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Updated: Jul 17, 2026

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue
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在离子液体中激光诱导过渡金属纳米粒子的碎片化

Marcos A Gelesky1, Alexandre P Umpierre, Giovanna Machado

  • 1Laboratory of Molecular Catalysis, Institute of Chemistry and Institute of Physics UFRGS, Av. Bento Gonçalves, 9500 Porto Alegre, 91501-970 RS Brazil.

Journal of the American Chemical Society
|March 31, 2005
PubMed
概括

在离子液体中使用激光照射制备了稳定的和纳米粒子. 这种方法还可以在使用后再生纳米粒子,为金属合物生成提供一种可持续的方法.

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Mass Spectrometry: Molecular Fragmentation Overview01:20

Mass Spectrometry: Molecular Fragmentation Overview

The ionization of a molecule into a molecular ion inside the mass spectrometer causes instability in the molecule's structure due to the loss of an electron. This eventually leads to the fragmentation or breaking of some bonds in the molecule. The fragmentation occurs predominantly at specific bonds to yield relatively stable fragments.
One type of fragmentation pattern is the cleavage of a single bond in the molecular ion. The cleavage leads to a radical and a cation. The cleavage can occur at...