Original title: Zlepšování limitů detekce spektroskopie laserem indukovaného plazmatu (LIBS) pomocí aplikace nanočástic
Translated title: Enhancement of detection limits in Laser-Induced Breakdown Spectroscopy (LIBS) using nanoparticles
Authors: Képeš, Erik ; Prochazka, David (referee) ; Sládková, Lucia (advisor)
Document type: Bachelor's theses
Year: 2014
Language: cze
Publisher: Vysoké učení technické v Brně. Fakulta strojního inženýrství
Abstract: [cze] [eng]
Bakalárska práca popisuje možnosti zlepšovania detekčných limít metódy spektroskopie laserom indukovanej plazmy (LIBS). Zhŕňa modifikácie klasickej aparatúry, ktoré využívajú metódy double-pulsed LIBS (DPLIBS), Townsend effect plasma sectroscopy (TEPS), resonance enhanced LIBS (RELIBS), spark discharge LIBS (SDLIBS), flame-enhanced LIBS (FELIBS) aj nové postupy pri príprave vzoriek, ktoré používa metóda nanoparticle enhanced LIBS (NELIBS). Popisuje mechanizmy, ktoré využívajú jednotlivé metódy k zníženiu detekčných limít a obsahuje prehľad dosiahnutých zlepšení oproti klasickej metóde LIBS. Podrobnejšie sa zaoberá najnovšou metódou nanoparticle enhanced LIBS a experimentálne overuje a skúma vplyv nanočastíc rôznych typov a veľkostí na intenzitu emisného spektra metódy LIBS. This bachelor's thesis describes the options of ehnancing the detection limits of laser-induced breakdown spectroscopy (LIBS). It summarizes different modifications of the classical LIBS apparatus, which are used by methods double-pulsed LIBS (DPLIBS), Townsend effect plasma sectroscopy (TEPS), resonance enhanced LIBS (RELIBS), spark discharge LIBS (SDLIBS), flame-enhanced LIBS (FELIBS), and new ways of sample preparation, such as are used in the method nanoparticle enhanced LIBS (NELIBS). It briefly describes the mechanisms, which are used by each method to reduce the detection limit and it contains an overview of obtained enhancements against the classical method LIBS. It deals with the method nanoparticle enhanced LIBS in more detail and experimentally verifies and studies the effects of nanoparticles of different types and sizes on the emission spectrum of the method LIBS.
Keywords: enhancement of detection limits; gold nanoparticles; laser-induced breakdown spectroscopy; LIBS; silver nanoparticles; LIBS; spektroskopia laserom indukovanej plazmy; strieborné nanočastice; zlaté nanočastice; zlepšovanie limitov detekcie

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/33582

Permalink: http://www.nusl.cz/ntk/nusl-611698


The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Academic theses (ETDs) > Bachelor's theses