Marketa Hola

Marketa Hola
Masaryk University | MUNI · Department of Chemistry

Ph.D.

About

49
Publications
6,028
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
483
Citations
Citations since 2017
29 Research Items
276 Citations
20172018201920202021202220230204060
20172018201920202021202220230204060
20172018201920202021202220230204060
20172018201920202021202220230204060
Additional affiliations
May 2003 - present
Masaryk University
Position
  • Researcher
Description
  • Analysis of solid samples by LA-ICP-MS; Study of ablation process; Study of aerosol generated by laser ablation; ICP-MS; ICP-OES

Publications

Publications (49)
Article
The eastern part of the Moldanubian Zone (Bohemian Massif, Czech Republic) hosts the Western Moravian uranium (U) province where U exploitation was active from 1957 to 2017 with total production about 24,000 t of U. A set of 369 laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS) analyses were performed to simultaneously assay 5...
Conference Paper
Full-text available
If we detect changes in the chemical composition (mostly zonal development or the occurrence of different mineral phases) via electron microprobe, it is also possible to assume the existence of structural changes visible in the Raman spectra in form of a band shifts or bandwidth variations. Presence of such changes may relate to substitution mechan...
Article
Red colouring in marine red beds (MRB) is commonly attributed to deposition and early diagenesis under specific redox conditions. Therefore, the MRB can be considered time-specific facies. However, since red colouring is a subjective criterion, it is difficult to establish a colour limit for the MRB in the scale from grey to yellow, orange, pink to...
Article
A detailed study of alkali-rich syenites from the Gföhl unit of the Moldanubian Zone in the Bohemian Massif provides constraints on the exact origin and character of mantle source of ultrapotassic magmatism in the Variscan orogenic root in Central Europe. The syenites are characterized by highly alkaline composition (K2O 11.3–12.7 wt%; K2O/Na2O 6.8...
Article
The chromium and copper contamination of algae on a filter was directly monitored with laser-induced breakdown spectroscopy (LIBS) as a demonstration of LIBS capabilities. Liquid samples of the green alga Desmodesmus subspicatus were intentionally contaminated with chromium, incubated, filtered, and the filters with the algae were analysed. Inducti...
Article
A unique occurrence of ironstone lenses represented by ferruginous oncoids is reported from the offshore Řeporyje Limestone (Lower Devonian, Pragian) from the Prague Basin (the Stydlé Vody Quarry). The oncoidal cortices show distinct arrangement of hematite/chamosite and/or iron-bearing calcite laminae, which are irregular, wavy and with a relative...
Article
A variable assemblage of ultrabasic rocks along with minor eclogites investigated on a small area of a few km2 (Gföhl unit, Moldanubian Zone of the Bohemian Massif) reflects incorporation of contrasting mantle domains within a subduction-related tectonic mélange during the Variscan orogeny. Based on mineral composition, whole-rock chemistry, isotop...
Article
In the past couple of years, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been widely used for trace element analysis in solid samples and the study of their...
Article
The great potential in combining two elemental imaging techniques - Laser Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) is demonstrated for uranium ore sample investigation. Dual imaging provides the advantages of both methods – high speed, large area imaging and additional evaluat...
Article
The major and trace element composition of the main HFSE-bearing phases from highly evolved miaskitic syenites has been investigated to assess their stability, an important control on HFSE retention and mobility during post-magmatic hydrothermal activity. The major HFSE carrier, abundant zircon (up to 5 vol%), has undergone intensive metamictizatio...
Poster
Full-text available
Problematics of complicated chemistry across the epidote group is still challenging area, which can be used for better understanding of structures and their behavior on the basis of contained elements. Due to the presence of radioactive elements (U, Th) we can observe certain parts of crystalline, semi-crystalline and totally metamictized sections....
Article
Marine red beds are usually interpreted as indicating water column oligotrophy, good bottom‐water oxygenation and redox conditions. Lower Devonian successions of the Prague Basin, Czechia, exhibit a distinct centimetre to metre‐scale alternation of layers of marine red beds, grey carbonates, marls and black shales. In order to understand why the re...
Article
The orthoceratite limestone of the Ordovician epicontinental sea of Baltoscandia is one of the oldest Phanerozoic examples of pelagic marine red beds (MRBs). Being enriched in authigenic hematite, MRBs are considered to be sensitive palaeoceanographic redox indicators. In this paper, the origin of the reddening of the Ordovician MRBs and its timing...
Article
Hingganite-(Nd), ideally Nd2□Be2Si2O8(OH)2, is a new gadolinite group, gadolinite supergroup mineral discovered at Zagi Mountain, near Kafoor Dheri, about 4 km S of Warsak and 30 km NW of Peshawar, Khyber Pakhtunkhwa Province, Pakistan. The new mineral forms zones measuring up to 1 × 1 mm2 in loose prismatic crystals up to 0.7 cm long, where it is...
Article
The changes in aerosol physical properties were studied by applying Nanoparticle-Enhanced Laser Ablation Inductively Coupled Plasma Mass Spectrometry (NE-LA-ICP-MS). This approach was compared to conventional LA-ICP-MS method. Analyte signal enhancement was related to the particle number concentration of aerosol for three sizes of Au nanoparticles...
Article
Hydrothermal alteration of primary tourmaline (dravite, oxy-dravite, fluor-dravite,” uvite“, schorl, oxy-schorl, fluor-schorl) and associated plagioclase and quartz is examined in coarse-grained pegmatitic plagioclase-tourmaline rocks, simple granitic pegmatites and zoned beryl-columbite pegmatites, all cutting serpentinite from the Moldanubian Zon...
Article
In this work we discuss how sample surface topography can significantly influence the laser ablation (LA) process and, in turn, the analytical response of the LA Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) method. Six different surface topographies were prepared on a certified aluminium alloy sample BAM 311 and SRM NIST 610 to investig...
Article
The method of the laser ablation-inductively coupled plasma-mass spectrometry has become an effective tool in the analysis of the art and archaeological objects. With a few exceptions, however, it has not been fully established in the provenance analysis of historical paintings yet. Although the method is micro-destructive for the paint samples, th...
Article
LA-ICP-MS (laser ablation inductively coupled plasma mass spectrometry) was applied as a semi-destructive method for the analysis of metal layers on samples of cultural heritage. The LA system operates at a wavelength of 193 nm with a pulse duration of 4 ns. The laser ablation was performed using spot mode with a diameter of 110 µm. This method was...
Article
Full-text available
In the presented project the investigation on discrimination of geographic origin of wine in from border areas is carried out. Authentic wine samples from the border areas of Austria, Czech Republic, Slovakia (and from Serbia) are investigated and compared by applying different physico-chemical methods (e.g. IRMS, NMR, ICP-MS, ICP-OES, EPR, HPLC, U...
Article
Full-text available
Investigation on discrimination of geographic origin in border areas is carried out by investigating and comparing authentic wine samples from the border areas of Austria, Czech Republic, Slovakia (and from Serbia) by applying different physico-chemical methods (e.g. IRMS, NMR, ICP-MS, ICP-OES, EPR, HPLC, UV-VIS, etc…). The comparison of the data s...
Article
The Devonian–Carboniferous boundary was coeval with the Hangenberg Crisis, which is regarded as a first-order mass extinction event related with large sea-level changes and widespread anoxia. This study aims to trace the geochemical paleoproductivity and paleoredox proxies across the Devonian–Carboniferous carbonate-dominated successions of the Nam...
Article
The Devonian–Carboniferous boundary was coeval with the Hangenberg Crisis, which is regarded as a first-order mass extinction event related with large sea-level changes and widespread anoxia. This study aims to trace the geochemical paleoproductivity and paleoredox proxies across the Devonian–Carboniferous carbonate-dominated successions of the Nam...
Article
Nanoparticles (NPs) applied to surface of some solids can increase signals in inductively coupled plasma mass spectrometry (ICP-MS). Drops containing 20 and/or 40 nm nanoparticles of Ag and/or Au were deposited on metallic and ceramic/glass samples and, after being dried, both the samples treated with NPs and plain targets were ablated by one pulse...
Article
The dynamics of aerosol particles formed during nanosecond laser ablation of glass and steel samples was studied in the Laser Ablation – Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) system. In order to follow the evolution of particle size distribution with high time resolution during the laser ablation process, two fast response aeroso...
Poster
Nanoparticles (NPs) applied to the surface of some solids can increase signals in inductively coupled plasma mass spectrometry (ICPMS). Drops containing 20 and/or 40 nm nanoparticles of Ag and/or Au were deposited on metallic and ceramic/glass samples, and after being dried, both the samples treated with NPs and plain targets were ablated by one pu...
Article
Trace elements and REEY distribution of thinly laminated limestone (laminite) and underlying pre-event calciturbidite (Siphonodella praesulcata conodont Zone) deposited in association with the Hangenberg Black Shale Event were analyzed using laser ablation-inductively coupled plasma-mass spectrometry. These deposits were also analyzed by carbonate...
Article
The particle size distribution of dry aerosol originating from laser ablation of glass material was monitored simultaneously with Laser Ablation – Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) analysis and two aerosol spectrometers – Fast Mobility Particle Sizer (FMPS) and Aerodynamic Particle Sizer (APS). The unique combination of LA-IC...
Article
Full-text available
A silica sol-gel technique was applied to the preparation of pellets of agricultural soils for determination of trace elements by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). For the purpose of evaluation of feasibility of the LA-ICP-MS technique for quantitative determination, elemental contents in twenty two spiked arc...
Article
The outcomes from the feasibility study on utilization of synchrotron radiation X-ray microtomography (SR-μCT) to investigate the texture and the quantitative mineralogical composition of selected calcium oxalate-based urinary calculi fragments are presented. The comparison of the results obtained by SR-μCT analysis with those derived from current...
Article
LA-ICP-MS and solution based ICP-MS in combination with electron microprobe are presented as a method for the determination of the elemental spatial distribution in fish scales which represent an example of a heterogeneous layered bone structure.Two different LA-ICP-MS techniques were tested on recent common carp (Cyprinus carpio) scales:(a)A line...
Article
Full-text available
At the SYnchrotron Radiation for MEdical Physics (SYRMEP) beamline of Elettra Synchrotron Light Laboratory in Trieste (Italy), an extensive research program in bio‐medical imaging has been developed since 1997. The core program carried out by the SYRMEP collaboration concerns the use of Synchrotron Radiation (SR) for clinical mammography with the a...
Article
A study of LA-ICP-MS analysis of pressed powdered tungsten carbide precursors was performed to show the advantages and problems of nanosecond laser ablation of matrix-unified samples. Five samples with different compositions were pressed into pellets both with silver powder as a binder serving to keep the matrix unified, and without any binder. The...
Article
The influence of sample properties and composition on the size and concentration of aerosol particles generated by nanosecond Nd:YAG laser ablation at 213 nm was investigated for three sets of different materials, each containing five specimens with a similar matrix (Co-cemented carbides with a variable content of W and Co, steel samples with minor...
Conference Paper
The capability of Laser-Induced Breakdown Spectroscopy for elemental mapping of plant tissues is discussed in wider context. Comparison with another laser-ablation based method (LA-ICP-MS) and with synchrotron hard-X-ray radiation microradiography and micro-CT techniques is provided.
Article
Full-text available
The chemistry of recent fish scales (tench, common carp, amur and European perch) and subrecent fish scales (European perch and mostly taxonomically not determined) was studied by means of laser ablation inductively coupled plasma mass spectrometry and electron microprobe from shallow boreholes in the abandoned meander Certak near Uherské Hradiste....
Conference Paper
Paper demonstrates the applicability of the two complementary “laser assisted” techniques (laser induced breakdown spectroscopy and laser ablation coupled with ICP MS) for spatial distribution monitoring of different elements in mineralized tissues and bio-mineral structures.
Article
Cobalt-cemented hard metals present an example of samples with a complicated matrix consisting of components differing in chemical and physical properties and with extremely low volatility of all components. The purpose of this study was to compare particle formation of a set of real samples with similar matrices but different content of major comp...
Article
Full-text available
Heavy metal concentrations were studied in the scales of recent and subrecent (2–25years old) fish buried in the oxbow lake sediments of the Morava River. The samples were taken from two cores up to 4-m deep and analysed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and an electron microprobe analysis (EMPA). The res...
Article
Silica sol–gel matter was examined as a binder assisting the preparation of agricultural soil sample pellets for elemental analysis by laser ablation inductively coupled plasma optical emission spectrometry. The sol–gel method, allowing homogenous dispersion of internal standard (Sc) and analytes in calibration pellets, was applied to the determina...
Article
The quantification capabilities of iron-based samples were investigated using three commercially available ultraviolet (UV) nanosecond (ns) and femtosecond (fs) laser ablation systems coupled to inductively coupled plasma mass spectrometry (LA-ICP-MS). A comparison of three pulsed laser ablation systems (ArF* excimer, Nd:YAG and Ti-sapphire) with d...
Article
Full-text available
Laser ablation (LA) sample introduction into inductively coupled plasma optical emission spectrometry (ICP-OES) was used for powdered infant food formula being representative of samples with an organic matrix. Milk samples enriched with eight naturally occurring elements were presented for LA-ICP-OES experiments as cast epoxy resin disks. For Ca, C...
Article
Laser ablation (LA) was studied as a sample introduction technique for the analysis of powdered and sintered tungsten carbides (WC/Co) by inductively coupled plasma optical emission spectrometry (ICP–OES). The possibility to work with powdered and compact materials with close chemical composition provided the opportunity to compare LA sampling of s...
Article
The potential of the laser-induced argon spark atomizer (LINA-Spark atomizer) coupled with ICP-AES as a convenient device for direct analysis of WC/Co powdered precursors of sintered hardmetals was studied. The samples were presented for the ablation as pressed pellets prepared by mixing with powdered silver binder containing GeO2 as internal stand...

Network

Cited By

Projects

Projects (2)
Project
In order to understand certain chemical processes and how they correlate with inner structural changes in minerals, several analytical methods could be used. By using these methods in studying of minerals and materials (mostly with industrial applications) is of great importance for understanding the processes taking place at the atomic or molecular level. The development of hyperspectral imaging on a LA-ICP-MS, electron microprobe (WDS) and Raman spectroscopy brought interesting results in the field of crystallography and material research and the combination of such data sets offers great potential to improve both qualitative and quantitative description of results. Main goal of this research is ability to quantify data by combining results from Raman spectroscopy (structural fingerprint of molecules), electron probe microanalysis (elemental concentrations and distribution within sample) and LA-ICP-MS (highly sensitive elemental and isotopic analysis for the detection of trace elements) that could provide a very comprehensive tool for the investigation of structural/phase transitions and chemistry changes in the sample.
Project
Red pelagic carbonates are distinct marine facies, which form under oligotrophic and welloxygenated sea-bottom conditions and/or due to activity of iron oxidizing bacteria. The mechanism of their deposition is not well-understood. Since they commonly occur during warm greenhouse periods of the Phanerozoic (Devonian, Jurassic, Cretaceous), they can be considered as time-specific facies linked to marine redox conditions, similarly as black shales. In this project, we will study the red carbonates in three Palaeozoic greenhouse periods - Ordovician, early and late Devonian - and in seven areas of the Europe and South China. Through analyses of stratigraphic context, carbonate petrology, mineralogy of Fe oxyhydroxides, element geochemistry and microgeochemistry and stable isotopes we will interpret the redox conditions, organic productivity and presence or absence of microbial activity as possible controls of the red carbonate deposition. The principal aim is to make an insight into the origin and paleoclimatological context of the red carbonate facies in the Palaeozoic.