NagenderReddy Panyala

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J. R. Hernández-Fernaud

Josef Havel

Masaryk University

Nagender Reddy Panyala

Lawrence Berkeley National Laboratory

Jan Houška

Masaryk University

Eladia María Peña‐Méndez

Universidad de La Laguna

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Masaryk University

Universidad de La Laguna

St. Anne's University Hospital Brno

University Hospital Brno

Research Institute of Brewing and Malting (Czechia)

Maastricht University

Agricultural Research Institute Kromeriz

University of the Witwatersrand

Changchun Institute of Applied Chemistry

Chinese Academy of Sciences

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CHEMISTRY OF GOLD CLUSTERS IN PLASMA GENERATED WITH MALDI, LASER DESORPTION IONISATION AND LASER ABLATION FROM VARIOUS PRECURSORS

Eladia María Peña‐Méndez J. R. Hernández-Fernaud NagenderReddy Panyala Jan Houška Josef Havel

Common MALDI TOF MS instrumentation can be used to analyze gold species ionized in plasma by laser from GNP synthesized by chemical procedures. Gold is forming in plasma positively and negatively single charged clusters Aum + or Aum - which are also reacting with the other ions and mixed AumNan, AuCa, AuK, etc. clusters were also observed. The formation of gold hydrides, such as AuH, Au3H, and hydroxide AuOH and peroxides Au- HOOH, were also observed here for the first time. When GNP were used as a matrix for ionization of nanodiamonds, carbon-gold mixed clusters which includes C18Au, CAu2Na and C2Au2Na, and others were detected.

Laser Ablation

Gold Compounds

Carbon fibers

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