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Pulsed Laser Ablation of the Solid Targets in a Liquid Environment

Abstract

In this paper, the viability of laser ablation of gold target immersed in medical distillated water used to produce nanoparticles having morphological, structural and compositional properties for medical applications is explored. The morphological properties were investigated by means of scanning electron microscopy (SEM). Energy-dispersive X-ray spectroscopy (EDX) analysis was used to reveal the composition of resulting particles. The absorbance in the wavelengths range of 300-800 nm can be assigned to the small gold nanoparticles.

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Some considerations in the reconstruction of lead levels using laser ablation: lessons from the design stage of dendrochemistry study, St.John's, Canada

Environmen-tal Quality 24: 126–131, DOI 10.2134/jeq1995.00472425002400010018x. Foley R, Bell T and Liverman DGE, 2011. Urban Geochemical Hazard Mapping: the Case Study of St. John’s, Newfoundland. Atlantic Geology 47: 138–157, DOI 10.4138/atlgeol.2011.007. Fostard O and Pedersen PA, 1998. Progeny testing in street trees sub-jected to roadside soil pollution. Journal of Arboriculture 24(3): 127–134. Garbe-Schönberg CD, Reimann C and Pavlov VA, 1997. Laser ablation ICP-MS analyses of tree-ring profiles in pine and birch from N Norway and NW Russia: a reliable record of

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Effect of Pulsed Laser Ablation on the Increase of Adhesion of CRN Coating-Substrate

electron beam interaction with AISI 1045 steel and the microstructure evolution. In Science Direct, 19th CIRP Conference on Electro Physical and Chemical Machining, Bilbao, Spain. 12. VILLERIUS, V., KOOIKER, H., POST, J., PEI, Y. T. 2019. Ultrashort pulsed laser ablation of stainless steels. In International Journal of Machine Tools and Manufacture . Vol. 138, pp. 27 – 35.

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Preparation of metal nanoparticles by femtosecond laser ablation

References Amekura HN, Umeda K, Kono Y, Takeda N, Kishimoto CH, Buchal, Mantl S (2007) Dual surface plasmon resonances in Zn nanoparticles in SiO 2 : an experimental study based on optical absorption and thermal stability. Nanotechnology 18: 395707. Amoruso S, Bruzzese R, Wang X, Xia J (2008) Femtosecond laser ablation of nickel in vacuum, Appl. Phys. Lett. 92: 041503. Arboleda DM, Santillán JM, Herrera LJM, Fernández VAN, Raap MB, Zélis PM, Muraca D, Schinca DC, Scaffardi LB (2015) Synthesis of Ni nanoparticles by femtosecond laser ablation in

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STRUCTURAL CHANGES IN PULSED LASER ABLATED CuInSe2 COMPOUND STRUKTURĀLĀS IZMAIŅAS IMPULSA LĀZERA ABLĒTAJĀ CuInSe2 SAVIENOJUMĀ

laser induced fusion and fragmentation of thionicotinamide-capped gold nanoparticles. J. Phys. Chem. B. 103, 2589-2591. 12. Hodak, J. H., Henglein, A., Giersig, M. & Hartland, G. V. (2000). Laser-induced inter-diffusion in AuAg core-shell nanoparticles. J. Phys. Chem. B 104, 11708. 13. Ya-Huey Yeh, Ming-Shin Yeh, Yi-Pei Lee, and Chen-Sheng Yeh. (1998). Formation of Cu nanoparticles from CuO powder by laser ablation in 2-Propanol. Chemistry Letters, 1183-1184. 14. Anne HAHN, Stephan BARCIKOWSKI & Boris N. CHICHKOV. (2008

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The origin and chronology of medieval silver coins based on the analysis of chemical composition

determination of ores from Central Europe and their metallogenetic interpretation. Contrib. Mineral Petrol., 106, 440-461. 11. Ponting, M., Evans, J. A., & Pashley, V. (2003). Fingerprinting of Roman mints using laser ablation MC-ICP-MS lead isotope analysis. Archaeometry, 45, 591-597. DOI: 10.1046/j.1475.2003.00130.x. 12. Goldstein, J. I., Newbury, D. E., Echlin, P., Joy Jr, D. C., Romig, A. D., Lyman, C. E., Fiori, C., & Lifshin, E. (1992). Scanning electron microscopy and X-ray microanalysis. A text for biologists, material scientists and

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Desorption/ablation of lithium fluoride induced by extreme ultraviolet laser radiation

., Singh, R. K., Nampoori, V. P. N., & Kumar, A. (2013). Fast imaging of the laser-blow-off plume driven shock wave: Dependence on the mass and density of the ambient gas. Phys. Lett. A, 377(5), 391-398. DOI: 10.1016/j.physleta.2012.11.058. 6. Harilal, S. S., Bindhu, C. V., Tillack, M. S., Najmabadi, F., & Gaeris, A. C. (2003). Internal structure and expansion dynamics of laser ablation plumes into ambient gases. J. Appl. Phys., 93(5), 2380-2388. http://dx.doi.org/10.1063/1.1544070. 7. Itina, T. E., Katassonov, A. A., Marine, W., & Autric

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A Comparison of ETV and LA for the Determination of Trace Elements in Solid Samples by MIP OES

Abstract

The performance of electrothermal vaporization (ETV) and laser ablation (LA) of dry aerosols as sample introduction systems for microwave induced plasma optical emission spectrometry (MIP OES) are compared and evaluated in terms of detection limits, precision and accuracy for the determination of trace elements (Ca, Cd, Cu, Fe, Mg, Mn, Sr, Zn) in the same solid micro samples. In MIP OES both radiation sources can be independently adjusted to optimize the sampling process and then its subsequent excitation. A univariate approach and simplex optimization procedure were used to obtain the best signal/noise (S/N) ratio and derive analytical figures of merit. A comparison using a Student’s t-test between the results obtained by both ETV/LA-MIP OES methods for trace elements, and concentrations in standard reference material (SRM) and certified reference materials (CRMs) showed that there was no significant differences on a 95 % confidence level. The detection limits of the tested elements in solid samples by ETV/LA-MIP OES were in the range of 0.1 to 11 µg g−1 for all elements determined, while the corresponding absolute values in the range of ng. The precision of the results for ETV-MIP OES and LA-MIP OES varied between 2 and 4 % and 3 and 7 %, respectively. The linear dynamic ranges in the ETV/LA-MIP OES are extend over three decades of concentration. The methods were validated by the analysis of NIST SRM 2711Montana Soil, NRCC CRM PACS-2 Marine Sediment and NRCC CRM TORT-2 Lobster Hepatopancreas of different matrix composition and by the standard addition technique.

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Geochronology and Sr–Nd–Hf isotope constraints on the petrogenesis of teschenites from the type-locality in the Outer Western Carpathians

Abstract

The Teschenite Association Rocks (TAR) in the Outer Western Carpathian (OWC) flysch form a classic suite of alkaline intrusions where teschenite and picrite were first defined. They represent continental intraplate volcanism that produced a wide range of melano- to mesocratic rocks emplaced during the Early Cretaceous rifting within the southern margin of the European Plate. Geochemical modelling indicates that they may be a product of ~2–5 % partial melting of the metasomatised, asthenospheric mantle. The variations in REE (low / heavy REE content, LaN/YbN = 11–34) are consistent with deep melting of garnet peridotite. Initial ε(Nd)i = 5.0–6.3 and ε(Hf)i = 4.9–10.0 preclude the significant mature crust involvement. Instead, a linear array formed by the 143Nd/144Nd and 176Hf/177Hf isotopic ratios points to a genesis from the mixed, HIMU–OIB source with the more depleted, MORB-type component. Mantle metasomatism was most likely caused by the Variscan subduction–collision processes as indicated by the depleted mantle Nd model ages. The isotope and trace element ratios of the TAR resemble the European Asthenospheric Reservoir (EAR) — the common mantle end-member for the widespread Cenozoic volcanic rocks in Europe. This confirms a long-term existence of the EAR mantle component beneath the Central Europe, at least since the Early Cretaceous. In situ laser-ablation ICP-MS U–Pb dating of titanite indicates short duration of mafic alkaline magmatism in the OWC, lasting from 123.7 ± 2.1 to 117.9 ± 1.8 Ma. Emplacement of the TAR is correlated with the maximum lithospheric thinning that triggered adiabatic decompression and partial melting of the upwelling asthenospheric mantle. Magmatism ceased most likely due to transition to the dominantly compressive regime associated with the major stress field reorganization directly preceding the Carpathian– Alpine Orogeny.

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Elemental composition of fly ash: a comparative study using nuclear and related analytical techniques / Skład pierwiastkowy popiołów lotnych: studium przypadku z wykorzystaniem metod nuklearnych i analitycznych

spectrometry and γ-spectroscopy. Microchem J. 2010;95:181-185. DOI: 10.1016/j.microc.2009.11.008. [20] Dogan O, Symsek Ö, Nuhoglu Y, Kopya M, Ertugrul M. Geochemistry, soil, and environmental sciences x-ray fluorescence spectrometry analysis of trace elements in fly ash samples of Kemerköy thermal power plants. J Trace Microprobe Techniques. 2001;19(2):289-295. DOI: 10.1081/TMA-100002218. [21] Spears D. The use of laser ablation inductively coupled plasma-mass spectrometry (LA ICP-MS) for the analysis of fly ash. Fuel. 2004

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