TY  - JOUR
A1  - Wardoyo, Arinto Y.P.
A1  - Noor, Johan A.E.
A1  - Elbers, Gereon
A1  - Schmitz, Sandra
A1  - Flaig, Sascha T.
A1  - Budianto, Arif
T1  - Characterizing volcanic ash elements from the 2015 eruptions of bromo and raung volcanoes, Indonesia
JF  - Polish Journal of Environmental Studies
N2  - The volcanic eruptions of Mt. Bromo and Mt. Raung in East Java, Indonesia, in 2015 perturbed volcanic materials and affected surface-layer air quality at surrounding locations. During the episodes, the volcanic ash from the eruptions influenced visibility, traffic accidents, flight schedules, and human health. In this research, the volcanic ash particles were collected and characterized by relying on the detail of physical observation. We performed an assessment of the volcanic ash elements to characterize the volcanic ash using two different methods which are aqua regia extracts followed by MP-AES and XRF laboratory test of bulk samples. The analysis results showed that the volcanic ash was mixed of many materials, such as Al, Si, P, K, Ca, Ti, V, Cr, Mn, Fe, Ni, and others. Fe, Si, Ca, and Al were found as the major elements, while the others were the trace elements Ba, Cr, Cu, Mn, P, Mn, Ni, Zn, Sb, Sr, and V with the minor concentrations. XRF analyses showed that Fe dominated the elements of the volcanic ash. The XRF analysis showed that Fe was at 35.40% in Bromo and 43.00% in Raung of the detected elements in bulk material. The results of aqua regia extracts analyzed by MP-AES were 1.80% and 1.70% of Fe element for Bromo and Raung volcanoes, respectively.
Y1  - 2020
U6  - http://dx.doi.org/10.15244/pjoes/99101
SN  - 2083-5906
VL  - 29
IS  - 2
SP  - 1899
EP  - 1907
PB  - HARD
CY  - Olsztyn
ER  - 
TY  - JOUR
A1  - Wang, Ren-Qi
A1  - Druckenmüller, Katharina
A1  - Elbers, Gereon
A1  - Guenther, Klaus
A1  - Croué, Jean-Philippe
T1  - Analysis of aquatic-phase natural organic matter by optimized LDI-MS method
JF  - Journal of mass spectrometry
N2  - The composition and physiochemical properties of aquatic-phase natural organic matter (NOM) are most important problems for both environmental studies and water industry. Laser desorption/ionization (LDI) mass spectrometry facilitated successful examinations of NOM, as humic and fulvic acids in NOM are readily ionized by the nitrogen laser. In this study, hydrophobic NOMs (HPO NOMs) from river, reservoir and waste water were characterized by this technique. The effect of analytical variables like concentration, solvent composition and laser energy was investigated. The exact masses of small molecular NOM moieties in the range of 200–1200 m/z were determined in reflectron mode. In addition, spectra of post-source-decay experiments in this range showed that some compounds from different natural NOMs had the same fragmental ions. In the large mass range of 1200–15 000 Da, macromolecules and their aggregates were found in HPO NOMs from natural waters. Highly humic HPO exhibited mass peaks larger than 8000 Da. On the other hand, the waste water and reservoir water mainly had relatively smaller molecules of about 2000 Da. The LDI-MS measurements indicated that highly humic river waters were able to form large aggregates and membrane foulants, while the HPO NOMs from waste water and reservoir water were unlikely to form large aggregates. Copyright © 2014 John Wiley & Sons, Ltd.
Y1  - 2014
U6  - http://dx.doi.org/10.1002/jms.3321
SN  - 1096-9888
VL  - 49
IS  - 2
SP  - 154
EP  - 160
PB  - Wiley
CY  - Bognor Regis
ER  - 
TY  - JOUR
A1  - Turek, Monika
A1  - Ketterer, Lothar
A1  - Claßen, Melanie
A1  - Berndt, Heinz
A1  - Elbers, Gereon
A1  - Krüger, Peter
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Development and Electrochemical Investigations of an EIS-(Electrolyte-Insulator-Semiconductor) based Biosensor for Cyanide Detection
JF  - Sensors
Y1  - 2007
SN  - 1424-8220
VL  - 7
IS  - 8
SP  - 1415
EP  - 1426
ER  - 
TY  - CHAP
A1  - Kasper, Katharina
A1  - Schiffels, Johannes
A1  - Krafft, Simone
A1  - Kuperjans, Isabel
A1  - Elbers, Gereon
A1  - Selmer, Thorsten
T1  - Biogas Production on Demand Regulated by Butyric Acid Addition
T2  - IOP Conference Series: Earth and Environmental Science. Bd. 32
Y1  - 2016
U6  - http://dx.doi.org/10.1088/1755-1315/32/1/012009
SN  - 1755-1315
N1  - ICARET 2016, International Conference on Advances in Renewable Energy and Technologies, Putrajaya, MY, Feb 23-25, 2016
VL  - 32
SP  - 012009/1
EP  - 012009/4
ER  - 
TY  - CHAP
A1  - Hoffmann, Katharina
A1  - Nieren, Monika
A1  - Gäb, Martina
A1  - Kasper, Anna
A1  - Elbers, Gereon
T1  - The potential of near infrared spectroscopy (NIRS) for the environmental biomonitoring of plants
T2  - International conference on Life Sciences and Technology
N2  - In the current environmental condition, the increase in pollution of the air, water, and soil indirectly will induce plants stress and decrease vegetation growth rate. These issues pay more attention to be solved by scientists worldwide. The higher level of chemical pollutants also induced the gradual changes in plants metabolism and decreased enzymatic activity. Importantly, environmental biomonitoring may play a pivotal contribution to prevent biodiversity degradation and plants stress due to pollutant exposure. Several previous studies have been done to monitor the effect of environmental changes on plants growth. Among that, Near Infrared spectroscopy (NIRS) offers an alternative way to observe the significant alteration of plant physiology caused by environmental damage related to pollution. Impairment of photosynthesis, nutrient and oxidative imbalances, and mutagenesis.
Y1  - 2019
U6  - http://dx.doi.org/10.1088/1755-1315/276/1/012009
SN  - 1755-1315
N1  - IOP Conference Series: Earth and Environmental Science : 276
VL  - 276
IS  - 012009
SP  - 1
EP  - 3
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Zang, Thorsten
A1  - Buck, Manfred
T1  - Ruß-Immissionsmessungen im Einflußbereich des Kraftfahrzeugverkehrs
JF  - Staub, Reinhaltung der Luft : air quality control. 50 (1990)
Y1  - 1990
SN  - 0039-0771
SP  - 93
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Thomzik, Manfred
T1  - Das Entstehen geruchsintensiver schwefelhaltiger organischer Verbindungen in Lackierereien und Möglichkeiten zu deren Vermeidung
JF  - Aus der Tätigkeit der LIS / Landesanstalt für Immissionsschutz des Landes Nordrhein-Westfalen. 1989 (1990)
Y1  - 1990
SN  - 0931-5497
SP  - 35
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Richter, J.
T1  - Messung kraftfahrzeugbedingter Rußimmissionen
JF  - Staub, Reinhaltung der Luft : air quality control. 54 (1994)
Y1  - 1994
SN  - 0039-0771
SP  - 19
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Remme, S.
A1  - Lehmann, G.
T1  - EPR of Cr3+ in Tris(acetylacetonato)gallium(III) Single Crystals
JF  - Inorganic Chemistry. 25 (1986)
Y1  - 1986
SN  - 0020-1669
SP  - 896
EP  - 897
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Remme, S.
A1  - Lehmann, G.
T1  - EPR and Optical Absorption of Cr3+ in CsCl and CsBr
JF  - Physica Status Solidi (B). 142 (1987), H. 2
Y1  - 1987
SN  - 0031-8957
SP  - 367
EP  - 377
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Pfeffer, Hans-Ulrich
A1  - Friesel, Jürgen
A1  - Beier, Reinhold
T1  - Air Pollution Monitoring in Street Canyons / Hans-Ulrich Pfeffer, Jürgen Friesel, Gereon Elbers, Reinhold Beier,
JF  - Transport and air pollution : proceedings ; 3rd international symposium, Palais des Papes, Avignon, France, 6 - 10 June 1994 = Transports et pollution de l'air / [Third International Symposium on Transport and Air Pollution]. Ed. by Robert Joumard. Organizer: French National Institute for Transport and Safety Research
Y1  - 1995
N1  - International Symposium on Transport and Air Pollution  <3, 1994, Avignon>
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Pfeffer, H.-U.
A1  - Friesel, J.
A1  - Beier, R.
T1  - Pilotuntersuchungen gemäß dem Verordnungsentwurf nach § 40, Abs. 2 des Bundesimmissionsschutzgesetzes / H.-U. Pfeffer, J. Friesel, G. Elbers, R. Beier, K. Ellermann
JF  - Drei Jahrzehnte Luftqualitätsüberwachung : Vorträge und Berichte zum Kolloquium "Drei Jahrzehnte Luftqualitätsüberwachung - Bilanz und Perspektiven" am 11. November 1993 in Essen / [Hrsg.: Landesanstalt für Immissionsschutz Nordrhein-Westfalen. Red. Bearb.: Robert Niesenhaus]
Y1  - 1993
N1  - LIS-Berichte ; 110 ;
SP  - 117
CY  - Essen
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Nieren, Monika
A1  - Hoffmann, Katharina
A1  - Gäb, Martina
T1  - Schnellerfassung der Wirkung von Luftschadstoffen auf Pflanzen mit der Nahinfrarotspektroskopie (NIRS). Untersuchung Ammoniak exponierter Gräser und Kräuter  / Nieren, Monika ; Hoffmann, Katharina ; Gäb, Martina ; Ooyen, Sven van ; Köllner, Barbara ; Elbe
JF  - Immissionsschutz. 13 (2008), H. 2
Y1  - 2008
SN  - 1430-9262
SP  - 82
EP  - 90
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Muratyan, Simone
T1  - Problematik verkehrsbezogener Außenluftmessungen von Partikeln (Dieselruß)
JF  - + Krebserzeugende Stoffe in der Umwelt : Herkunft, Messung, Risiko, Minimierung ; Kolloquium Mannheim, 23. bis 25. April 1991 / Kommission Reinhaltung der Luft im VDI und DIN
Y1  - 1991
SN  - 3-18-090888-2
N1  - VDI-Berichte ; 888
SP  - 143
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Lehmann, G.
T1  - Electron paramagnetic resonance of Vanadyl ion impurities in crystalline solids: A comment
JF  - Journal of Physics and Chemistry of Solids. 46 (1985), H. 6
Y1  - 1985
SN  - 0022-3697
SP  - 761
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Lehmann, G.
T1  - Electron Paramagnetic Resonance and Optical Absorption Spectra of VO2+ in CsCl Single Crystals
JF  - Zeitschrift für Naturforschung / Section A, a journal of physical sciences. 40 (1985)
Y1  - 1985
SN  - 0932-0784
SP  - 511
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Gäb, Martina
A1  - Hoffmann, Katharina
A1  - Lobe, Melanie
T1  - NIR-spectroscopic investigation of foliage of ozone-stressed Fagus sylvatica trees / Gäb, Martina ; Hoffmann, Katharina ; Lobe, Melanie ; Metzger, Rut ; Ooyen, Sven van ; Elbers, Gereon ; Köllner, Barbara
JF  - Journal of Forest Research. 11 (2006), H. 2
Y1  - 2006
SN  - 1341-6979
SP  - 69
EP  - 75
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Buck, Manfred
T1  - Soot Concentration in Ambient Air / M. Buck, G. Elbers
JF  - Erdöl & Kohle, Erdgas, Petrochemie : EKEP. 45 (1992)
Y1  - 1992
SN  - 0014-0058
SP  - 219
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Behner, T.
A1  - Remme, S.
A1  - Prissok, F.
T1  - Interstitial Metal Impurities as a Possible Cause of Enhanced Reactivities / T. Behner, G. Elbers, S. Remme, F. Prissok, P. Stegger, and G. Lehmann
JF  - Berichte der Bunsen-Gesellschaft : physical chemistry, chemical physics. 90 (1986)
Y1  - 1986
SN  - 0005-9021
SP  - 698
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
A1  - Bauer, H. D.
A1  - Buck, Manfred
A1  - Dahmann, D.
T1  - Rußmessungen am Arbeitsplatz und in der Außenluft - Vergleich zweier Meßmethoden  / H.D. Bauer, M. Buck, D. Dahmann, G. Elbers, H.-H. Fricke
JF  - Staub, Reinhaltung der Luft : air quality control. 54 (1994)
Y1  - 1994
SN  - 0039-0771
SP  - 55
ER  -