ACFC/Institute/Members

Dipl.-Ing. Dr.techn. Helmar Wiltsche

Groupleader of Element Alanysis

Phone:                +43 (316) 873 - 32505
EMail:                 helmar.wiltschenoSpam@tugraz.at
Topics:               Element Analysis


Articles in peer reviewed journals

2017
Brigitte Wendl, Helmar Wiltsche, Ernst Lankmayr, H Winsauer, A Muchitsch, N Jakse, M Wendl and T Wendl Metal release profiles of orthodontic bands, brackets, and wires: an in vitro study Journal of Orofacial Orthopedics = Fortschritte der Kieferorthopädie 2017, 2017
Thiago L. Marques, Helmar Wiltsche, Joaquim A. Nóbrega, Monika Winkler and Günter Knapp Performance evaluation of a high-pressure microwave-assisted flow digestion system for juice and milk sample preparation Analytical and Bioanalytical Chemistry 2017, 4449-4458, 2017
Flavia Dalla Nora, Sandra M. Cruz Cruz, Cristiano K. Giesbrecht, Günter Knapp, Helmar Wiltsche, Cezar A. Bizzi, Juliano S. Barin and Erico M. M. Flores A new approach for the digestion of diesel oil by microwave-induced combustion and determination of inorganic impurities by ICP-MS Journal of analytical atomic spectrometry 2017, 408-414, 2017
2016
Femke Vertregt, Guzman Torrelo, Sarah Trunk, Helmar Wiltsche, Wilfred R Hagen, Ulf Hanefeld and Kerstin Steiner EPR Study of Substrate Binding to Mn(II) in Hydroxynitrile Lyase from Granulicella tundricola ACS Catalysis 2016, 5081–5085, 2016
Sepideh Mostofi, Ehsan Bonyadi Rad, Helmar Wiltsche, Ulrike Fasching, Gabor Szakacs, Claudia Ramskogler, Sriveena Srinivasaiah, Muammer Ueçal, Regine Willumeit, Annelie-Martina Weinberg and Ute Schaefer Effects of Corroded and Non-Corroded Biodegradable Mg and Mg Alloys on Viability, Morphology and Differentiation of MC3T3-E1 Cells Elicited by Direct Cell/Material Interaction PLoS ONE 2016, 2016
Paul Tirk, Matthias Wolfgang and Helmar Wiltsche Reduction of argon consumption to < 2 L min-1 by gas recycling in inductively coupled plasma – optical emission spectrometry Analytical Chemistry 2016, 7352–7357, 2016
2015
Helmar Wiltsche and Monika Winkler Listen to your RF generator - On the seeming carbon-induced enhancement of elements like arsenic and selenium in inductively coupled plasmas
Martina Sammer, Adam D Wexler, Philipp Kuntke, Helmar Wiltsche, Natalia Stanulewicz, Ernst Lankmayr, Jakob Woisetschläger and Elmar C Fuchs Proton production, neutralisation and reduction in a floating water bridge Journal of physics / D 2015, 415501-415512, 2015
Thiago Linhares Marques, Helmar Wiltsche, Herbert Motter, Joaquim Araújo Nóbrega and Günter Knapp High pressure microwave-assisted flow digestion system using a large volume reactor-feasibility for further analysis by inductively coupled plasma-based techniques Journal of analytical atomic spectrometry 2015, 1898-1905, 2015
Helmar Wiltsche, Monika Winkler and Paul Tirk Matrix effects of carbon and bromine in inductively coupled plasma optical emission spectrometry Journal of analytical atomic spectrometry 2015, 2223-2234, 2015
Andrej Golubkov, Sebastian Scheikl, René Planteu, Gernot Voitic, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Alexander Thaler and Viktor Hacker Thermal runaway of commercial 18650 Li-ion batteries with LFP and NCA cathodes – impact of state of charge and overcharge RSC Advances 2015, 57171-57186, 2015
Thiago Linhares Marques, Helmar Wiltsche, Joaquim Araújo Nóbrega, Herbert Motter and Günter Knapp Microwave-assisted high pressure flow digestion: A new approach for on-line sample preparation
Sandra M. Cruz Cruz, Paul Tirk, Flavia M. Dalla Nora, Lucas Schmidt, Helmar Wiltsche, Cezar A. Bizzi, Günter Knapp and Erico M. M. Flores Feasibility of sulfur determination in diesel oil by inductively coupled plasma optical emission spectrometry after microwave-induced combustion using flame retardant Fuel 2015, 108-113, 2015
Paul Tirk, Helmar Wiltsche and Günter Knapp Enclosed Inductively Coupled Plasma: Fundamental Characterization, Gas Flow Dynamics and Heat Transfer
Paul Tirk, Helmar Wiltsche and Günter Knapp Geschlossenes induktiv gekoppeltes Plasma: Aufbau und Charakterisierung
2014
Josef Ehgartner, Helmar Wiltsche, Sergey Borisov and Torsten Mayr Low cost referenced luminescent imaging of oxygen and pH with a 2-CCD colour near infrared camera The analyst 2014, 4924-4933, 2014
Helmar Wiltsche and Günter Knapp Flow Digestion Systems with Microwave and Conductive HeatingFlow Digestion Systems with Microwave and Conductive Heating253-280
Andrej Golubkov, Sebastian Scheikl, René Planteu, Gernot Voitic, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Alexander Thaler and Viktor Hacker Thermal runaway of a high-energy Li-ion battery with a Li(Ni0.80Co0.15Al0.05)02 based cathodeThermal runaway of a high-energy Li-ion battery with a Li(Ni0.80Co0.15Al0.05)02 based cathode17-20
Helmar Wiltsche, Paul Tirk, Herbert Motter, Monika Winkler and Günter Knapp A novel approach to high pressure flow digestion Journal of analytical atomic spectrometry 2014, 272-279, 2014
Josef Ehgartner, Helmar Wiltsche, Sergey Borisov and Torsten Mayr Low cost referenced luminescent imaging with 2-CCD color-near infrared cameras
Juliana S.F. Pereira, Helmar Wiltsche and Günter Knapp Microwave-Assisted UV DigestionMicrowave-Assisted UV Digestion205-229
Helmar Wiltsche and Günter Knapp Microwave assisted flow digestion: A review
Helmar Wiltsche, Farzaneh Moradi, Paul Tirk and Günter Knapp Online combustion followed by carbon dioxide removal: Evaluation of a new approach for the analysis of volatile organic substances by inductively coupled plasma optical emission spectrometry Journal of analytical atomic spectrometry 2014, 1767-1777, 2014
2013
Violeta Ivanova-Petropulos, Helmar Wiltsche, Trajče Stafilov, Marina Stefova, Herbert Motter and Ernst Lankmayr Multi-element analysis of Macedonian wines by inductively coupled plasma–mass spectrometry (ICP–MS) and inductively coupled plasma–optical emission spectrometry (IP–OES) for regional classification Macedonian journal of chemistry and chemical engineering 2013, 265-281, 2013
Helmar Wiltsche and Günter Knapp Microwave assisted high pressure flow digestion
Helmar Wiltsche, Paul Tirk and Günter Knapp Neue Ansätze zur Erklärung des "Carbon Enhancement Effect"
Andrej Golubkov, David Fuchs, Julian Wagner, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Gernot Voitic, Alexander Thaler and Viktor Hacker Thermal-runaway experiments on consumer Li-ion batteries with metal-oxide and olivin-type cathodes RSC Advances 2013, 3633-3642, 2013
Paul Tirk, Helmar Wiltsche, Herbert Motter and Günter Knapp Mikrowellenunterstützter Hochdruckdurchflussaufschluss - ein neuer Ansatz
Andrej Golubkov, Jelena Rubesa, David Fuchs, Julian Wagner, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Gernot Voitic, Alexander Thaler and Viktor Hacker Thermal runaway behavior of commercial 18650 Li-Ion batteries
Paul Tirk and Helmar Wiltsche Development of a Tungsten Boat Furnace for the Simultaneous Determination of Ag, Bi, Pb, Te and Zn in Nickel Super Alloys Using ICP-OES
Andrej Golubkov, David Fuchs, Julian Wagner, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Gernot Voitic, Alexander Thaler and Viktor Hacker Thermal runaway behavior of commercial 18650 Li-Ion batteries
Rochele S. Picoloto, Helmar Wiltsche, Günter Knapp, Paola Mello, Juliano S. Barin and Erico M. M. Flores Determination of Inorganic Pollutants in Soil after Volatilization using Microwave-Induced Combustion Spectrochimica acta / B 2013, 123-130, 2013
2012
Rochele S. Picoloto, Helmar Wiltsche, Günter Knapp, Juliano S. Barin and Erico M. M. Flores Mercury determination in soil by CVG-ICP-MS after volatilization using microwave-induced combustion Analytical Methods 2012, 630-636, 2012
Helmar Wiltsche and Günter Knapp Microwave assisted sample digestion – A review with focus on flow digestion systems
Helmar Wiltsche, Farzaneh Moradi and Günter Knapp Evaluation of the oscillator frequency of a free running RF generator as a diagnostic tool for inductively coupled plasma-optical emission spectrometry Spectrochimica acta / B 2012, 48-53, 2012
Helmar Wiltsche and Günter Knapp Bestimmung von Iod in Nahrungsmitteln
Luca Flamigni, Joachim Koch, Helmar Wiltsche, Robert Brogioli, Sabrina Gschwind and Detlef Günther Visualization, velocimetry, and mass spectrometric analysis of engineered and laser-produced particles passing through inductively coupled plasma sources Journal of analytical atomic spectrometry 2012, 619-625 , 2012
2011
Barbara Siegmund, Helmar Wiltsche and Erich Leitner In Vino Analytica Scientia 2011 - Analytical Chemistry for Wine, Brandy and Spirit. Proceedings of the 7th SymposiumVerlag der Technischen Universität Graz978-3-85125-166-1
Helmar Wiltsche and Günter Knapp Determination of Iodine using Vapor Generation ICP-OES
Helmar Wiltsche, Karl Prattes and Günter Knapp A novel approach for an automated liquid/liquid extraction system - principle and application for the determination of several trace contaminants in highly alloyed steels and base alloys Analytical and Bioanalytical Chemistry 2011, 2329-2338, 2011
Robert Brogioli, Bodo Hattendorf, Joachim Koch, Helmar Wiltsche, Luca Flamigni and Detlef Günther Online electrothermal heating of laser-generated aerosols: effects on aerosol particle size and signal intensities in ICPMS Analytical and Bioanalytical Chemistry 2011, 2201-2209, 2011
Helmar Wiltsche and Detlef Günther Capabilities of femtosecond laser ablation ICP-MS for the major, minor, and trace element analysis of high alloyed steels and super alloys Analytical and Bioanalytical Chemistry 2011, 2167-2174, 2011
Helmar Wiltsche and Günter Knapp Evaluation of the oscillator frequency of a free running RF generator as a diagnostic tool for ICP-OES
2010
Helmar Wiltsche and Detlef Günther Femtosecond laser ablation ICP-MS in steel industry – future or failure?
Helmar Wiltsche and Günter Knapp Determination of trace elements in advanced metallurgical samples – a method comparison
Helmar Wiltsche and Günter Knapp A new approach for automated liquid/liquid extraction

Other publications

2017
Brigitte Wendl, Helmar Wiltsche, Ernst Lankmayr, H Winsauer, A Muchitsch, N Jakse, M Wendl and T Wendl Metal release profiles of orthodontic bands, brackets, and wires: an in vitro study Journal of Orofacial Orthopedics = Fortschritte der Kieferorthopädie 2017, 2017
Thiago L. Marques, Helmar Wiltsche, Joaquim A. Nóbrega, Monika Winkler and Günter Knapp Performance evaluation of a high-pressure microwave-assisted flow digestion system for juice and milk sample preparation Analytical and Bioanalytical Chemistry 2017, 4449-4458, 2017
Flavia Dalla Nora, Sandra M. Cruz Cruz, Cristiano K. Giesbrecht, Günter Knapp, Helmar Wiltsche, Cezar A. Bizzi, Juliano S. Barin and Erico M. M. Flores A new approach for the digestion of diesel oil by microwave-induced combustion and determination of inorganic impurities by ICP-MS Journal of analytical atomic spectrometry 2017, 408-414, 2017
2016
Femke Vertregt, Guzman Torrelo, Sarah Trunk, Helmar Wiltsche, Wilfred R Hagen, Ulf Hanefeld and Kerstin Steiner EPR Study of Substrate Binding to Mn(II) in Hydroxynitrile Lyase from Granulicella tundricola ACS Catalysis 2016, 5081–5085, 2016
Sepideh Mostofi, Ehsan Bonyadi Rad, Helmar Wiltsche, Ulrike Fasching, Gabor Szakacs, Claudia Ramskogler, Sriveena Srinivasaiah, Muammer Ueçal, Regine Willumeit, Annelie-Martina Weinberg and Ute Schaefer Effects of Corroded and Non-Corroded Biodegradable Mg and Mg Alloys on Viability, Morphology and Differentiation of MC3T3-E1 Cells Elicited by Direct Cell/Material Interaction PLoS ONE 2016, 2016
Paul Tirk, Matthias Wolfgang and Helmar Wiltsche Reduction of argon consumption to < 2 L min-1 by gas recycling in inductively coupled plasma – optical emission spectrometry Analytical Chemistry 2016, 7352–7357, 2016
2015
Helmar Wiltsche and Monika Winkler Listen to your RF generator - On the seeming carbon-induced enhancement of elements like arsenic and selenium in inductively coupled plasmas
Martina Sammer, Adam D Wexler, Philipp Kuntke, Helmar Wiltsche, Natalia Stanulewicz, Ernst Lankmayr, Jakob Woisetschläger and Elmar C Fuchs Proton production, neutralisation and reduction in a floating water bridge Journal of physics / D 2015, 415501-415512, 2015
Thiago Linhares Marques, Helmar Wiltsche, Herbert Motter, Joaquim Araújo Nóbrega and Günter Knapp High pressure microwave-assisted flow digestion system using a large volume reactor-feasibility for further analysis by inductively coupled plasma-based techniques Journal of analytical atomic spectrometry 2015, 1898-1905, 2015
Helmar Wiltsche, Monika Winkler and Paul Tirk Matrix effects of carbon and bromine in inductively coupled plasma optical emission spectrometry Journal of analytical atomic spectrometry 2015, 2223-2234, 2015
Andrej Golubkov, Sebastian Scheikl, René Planteu, Gernot Voitic, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Alexander Thaler and Viktor Hacker Thermal runaway of commercial 18650 Li-ion batteries with LFP and NCA cathodes – impact of state of charge and overcharge RSC Advances 2015, 57171-57186, 2015
Thiago Linhares Marques, Helmar Wiltsche, Joaquim Araújo Nóbrega, Herbert Motter and Günter Knapp Microwave-assisted high pressure flow digestion: A new approach for on-line sample preparation
Sandra M. Cruz Cruz, Paul Tirk, Flavia M. Dalla Nora, Lucas Schmidt, Helmar Wiltsche, Cezar A. Bizzi, Günter Knapp and Erico M. M. Flores Feasibility of sulfur determination in diesel oil by inductively coupled plasma optical emission spectrometry after microwave-induced combustion using flame retardant Fuel 2015, 108-113, 2015
Paul Tirk, Helmar Wiltsche and Günter Knapp Enclosed Inductively Coupled Plasma: Fundamental Characterization, Gas Flow Dynamics and Heat Transfer
Paul Tirk, Helmar Wiltsche and Günter Knapp Geschlossenes induktiv gekoppeltes Plasma: Aufbau und Charakterisierung
2014
Josef Ehgartner, Helmar Wiltsche, Sergey Borisov and Torsten Mayr Low cost referenced luminescent imaging of oxygen and pH with a 2-CCD colour near infrared camera The analyst 2014, 4924-4933, 2014
Helmar Wiltsche and Günter Knapp Flow Digestion Systems with Microwave and Conductive HeatingFlow Digestion Systems with Microwave and Conductive Heating253-280
Andrej Golubkov, Sebastian Scheikl, René Planteu, Gernot Voitic, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Alexander Thaler and Viktor Hacker Thermal runaway of a high-energy Li-ion battery with a Li(Ni0.80Co0.15Al0.05)02 based cathodeThermal runaway of a high-energy Li-ion battery with a Li(Ni0.80Co0.15Al0.05)02 based cathode17-20
Helmar Wiltsche, Paul Tirk, Herbert Motter, Monika Winkler and Günter Knapp A novel approach to high pressure flow digestion Journal of analytical atomic spectrometry 2014, 272-279, 2014
Josef Ehgartner, Helmar Wiltsche, Sergey Borisov and Torsten Mayr Low cost referenced luminescent imaging with 2-CCD color-near infrared cameras
Juliana S.F. Pereira, Helmar Wiltsche and Günter Knapp Microwave-Assisted UV DigestionMicrowave-Assisted UV Digestion205-229
Helmar Wiltsche and Günter Knapp Microwave assisted flow digestion: A review
Helmar Wiltsche, Farzaneh Moradi, Paul Tirk and Günter Knapp Online combustion followed by carbon dioxide removal: Evaluation of a new approach for the analysis of volatile organic substances by inductively coupled plasma optical emission spectrometry Journal of analytical atomic spectrometry 2014, 1767-1777, 2014
2013
Violeta Ivanova-Petropulos, Helmar Wiltsche, Trajče Stafilov, Marina Stefova, Herbert Motter and Ernst Lankmayr Multi-element analysis of Macedonian wines by inductively coupled plasma–mass spectrometry (ICP–MS) and inductively coupled plasma–optical emission spectrometry (IP–OES) for regional classification Macedonian journal of chemistry and chemical engineering 2013, 265-281, 2013
Helmar Wiltsche and Günter Knapp Microwave assisted high pressure flow digestion
Helmar Wiltsche, Paul Tirk and Günter Knapp Neue Ansätze zur Erklärung des "Carbon Enhancement Effect"
Andrej Golubkov, David Fuchs, Julian Wagner, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Gernot Voitic, Alexander Thaler and Viktor Hacker Thermal-runaway experiments on consumer Li-ion batteries with metal-oxide and olivin-type cathodes RSC Advances 2013, 3633-3642, 2013
Paul Tirk, Helmar Wiltsche, Herbert Motter and Günter Knapp Mikrowellenunterstützter Hochdruckdurchflussaufschluss - ein neuer Ansatz
Andrej Golubkov, Jelena Rubesa, David Fuchs, Julian Wagner, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Gernot Voitic, Alexander Thaler and Viktor Hacker Thermal runaway behavior of commercial 18650 Li-Ion batteries
Paul Tirk and Helmar Wiltsche Development of a Tungsten Boat Furnace for the Simultaneous Determination of Ag, Bi, Pb, Te and Zn in Nickel Super Alloys Using ICP-OES
Andrej Golubkov, David Fuchs, Julian Wagner, Helmar Wiltsche, Christoph Stangl, Gisela Fauler, Gernot Voitic, Alexander Thaler and Viktor Hacker Thermal runaway behavior of commercial 18650 Li-Ion batteries
Rochele S. Picoloto, Helmar Wiltsche, Günter Knapp, Paola Mello, Juliano S. Barin and Erico M. M. Flores Determination of Inorganic Pollutants in Soil after Volatilization using Microwave-Induced Combustion Spectrochimica acta / B 2013, 123-130, 2013
2012
Rochele S. Picoloto, Helmar Wiltsche, Günter Knapp, Juliano S. Barin and Erico M. M. Flores Mercury determination in soil by CVG-ICP-MS after volatilization using microwave-induced combustion Analytical Methods 2012, 630-636, 2012
Helmar Wiltsche and Günter Knapp Microwave assisted sample digestion – A review with focus on flow digestion systems
Helmar Wiltsche, Farzaneh Moradi and Günter Knapp Evaluation of the oscillator frequency of a free running RF generator as a diagnostic tool for inductively coupled plasma-optical emission spectrometry Spectrochimica acta / B 2012, 48-53, 2012
Helmar Wiltsche and Günter Knapp Bestimmung von Iod in Nahrungsmitteln
Luca Flamigni, Joachim Koch, Helmar Wiltsche, Robert Brogioli, Sabrina Gschwind and Detlef Günther Visualization, velocimetry, and mass spectrometric analysis of engineered and laser-produced particles passing through inductively coupled plasma sources Journal of analytical atomic spectrometry 2012, 619-625 , 2012
2011
Barbara Siegmund, Helmar Wiltsche and Erich Leitner In Vino Analytica Scientia 2011 - Analytical Chemistry for Wine, Brandy and Spirit. Proceedings of the 7th SymposiumVerlag der Technischen Universität Graz978-3-85125-166-1
Helmar Wiltsche and Günter Knapp Determination of Iodine using Vapor Generation ICP-OES
Helmar Wiltsche, Karl Prattes and Günter Knapp A novel approach for an automated liquid/liquid extraction system - principle and application for the determination of several trace contaminants in highly alloyed steels and base alloys Analytical and Bioanalytical Chemistry 2011, 2329-2338, 2011
Robert Brogioli, Bodo Hattendorf, Joachim Koch, Helmar Wiltsche, Luca Flamigni and Detlef Günther Online electrothermal heating of laser-generated aerosols: effects on aerosol particle size and signal intensities in ICPMS Analytical and Bioanalytical Chemistry 2011, 2201-2209, 2011
Helmar Wiltsche and Detlef Günther Capabilities of femtosecond laser ablation ICP-MS for the major, minor, and trace element analysis of high alloyed steels and super alloys Analytical and Bioanalytical Chemistry 2011, 2167-2174, 2011
Helmar Wiltsche and Günter Knapp Evaluation of the oscillator frequency of a free running RF generator as a diagnostic tool for ICP-OES
2010
Helmar Wiltsche and Detlef Günther Femtosecond laser ablation ICP-MS in steel industry – future or failure?
Helmar Wiltsche and Günter Knapp Determination of trace elements in advanced metallurgical samples – a method comparison
Helmar Wiltsche and Günter Knapp A new approach for automated liquid/liquid extraction

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