Willi A. Brand

14.3k citations

135 papers · 9.8k indexed · 6 hit papers · h-index 47

Impact in

Geochemistry and Petrology top 0.2%
- Groundwater and Isotope Geochemistry
Atmospheric Science top 0.5%
- Geology and Paleoclimatology Research
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Tree-ring climate responses

Papers in

Geochemistry and Petrology 25
- Groundwater and Isotope Geochemistry 25
Global and Planetary Change 54
- Atmospheric and Environmental Gas Dynamics 33
- Radioactive contamination and transfer 13
- Plant Water Relations and Carbon Dynamics 13

Co-authors: Tyler B. Coplen Roland A. Werner Manfred Gröning Thomas Prohaska Matthias Gehre Heike Geilmann Harro A. J. Meijer Michael Berglund
Journals: Rapid Communications in Mass Spectrometry (26 papers)Isotopes in Environmental and Health Studies (8 papers)Analytical Chemistry (7 papers)Atmospheric measurement techniques (6 papers)Pure and Applied Chemistry (5 papers)
Partner nations: Germany United States Netherlands

In The Last Decade

Willi A. Brand

133 papers receiving 9.5k citations

Hit Papers

6 papers align trajectories log scale

Isotopic compositions of the elements 2013 (IUPAC Technical Report) 2016 · 537 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2016 Pure and Applied Chemistry
2016 Pure and Applied Chemistry
2014 Pure and Applied Chemistry
2013 Pure and Applied Chemistry
2006 Analytical Chemistry
2001 Rapid Communications in Mass Spectrometry

Peers

Countries citing papers authored by Willi A. Brand

Since Specialization

Citations

This map shows the geographic impact of Willi A. Brand's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Willi A. Brand with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Willi A. Brand more than expected).

Fields of papers citing papers by Willi A. Brand

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Willi A. Brand. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Willi A. Brand. The network helps show where Willi A. Brand may publish in the future.

Co-authors

The 25 scholars most cited alongside Willi A. Brand, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Willi A. Brand Line = papers co-authored together Willi A. Brand links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Predicting bovine tuberculosis status of dairy cows from mid-infrared spectral data of milk using deep learning Journal of Dairy Science ·Scott J. Denholm, Willi A. Brand, A.P. Mitchell, A.T. Wells, T Krzyzelewski, SL Smith, E. Wall, M.P. Coffey	2020	45
2	In-situ observations of the isotopic composition of methane at the Cabauw tall tower site Thomas Röckmann, Simon Eyer, Carina van der Veen, María Elena Popa, Béla Tuzson, Guillaum Monteil, Sander Houweling, Eliza Harris, Dominik Brunner, Hubertus Fischer, Giulia Zazzeri, David Lowry, Euan G. Nisbet, Willi A. Brand, Jarosław Nęcki, Lukas Emmenegger, Joachim Mohn	2016	3
3	In situ observations of the isotopic composition of methane at the Cabauwtall tower site Atmospheric chemistry and physics ·Thomas Röckmann, Simon Eyer, Carina van der Veen, María Elena Popa, Béla Tuzson, Guillaume Monteil, Sander Houweling, Eliza Harris, Dominik Brunner, Hubertus Fischer, Giulia Zazzeri, David Lowry, Euan G. Nisbet, Willi A. Brand, Jarosław Nęcki, Lukas Emmenegger, Joachim Mohn	2016	84
4	Development and evaluation of a suite of isotope reference gases for methanein air Atmospheric measurement techniques ·Peter Sperlich, Nelly A. M. Uitslag, Jürgen Richter, Michael Rothe, Heike Geilmann, Carina van der Veen, Thomas Röckmann, Thomas Blunier, Willi A. Brand	2016	24
5	iSAAC; a fully automated analytical system for high-accuracy δ13C and δ2H analyses of atmospheric methane EGU General Assembly Conference Abstracts ·Peter Sperlich, Magnus Wendeberg, Michael Rothe, Martin Strube, Willi A. Brand	2013	1
6	New reporting guidelines for stable isotopes – an announcement to isotope users Isotopes in Environmental and Health Studies ·Willi A. Brand	2011	16
7	δ ¹⁸ O anchoring to VPDB: calcite digestion with ¹⁸ O‐adjusted ortho ‐phosphoric acid Rapid Communications in Mass Spectrometry ·Magnus Wendeberg, Jürgen Richter, Michael Rothe, Willi A. Brand	2011	30
8	Variations of vessel diameter and δ¹³C in false rings ofArbutus unedoL. reflect different environmental conditions New Phytologist ·Giovanna Battipaglia, Veronica De Micco, Willi A. Brand, Petra Linke, Giovanna Aronne, Matthias Saurer, Paolo Cherubini	2010	109
9	UV light induces methane emission from plant biomass: mechanism and isotope studies Geochimica et Cosmochimica Acta ·I. Vigano, Rupert Holzinger, Thomas Röckmann, Arnold van Dijk, Frank Keppler, Markus Greule, Willi A. Brand, H. van Weelden, Joost T. van Dongen	2009	2
10	How well do we know VPDB? Variability of δ ¹³ C and δ ¹⁸ O in CO ₂ generated from NBS19‐calcite Rapid Communications in Mass Spectrometry ·Willi A. Brand, Lin Huang, Hitoshi Mukai, Alina Chivulescu, Jürgen Richter, Michael Rothe	2009	41
11	After Two Decades a Second Anchor for the VPDB delta-13-C Scale \| NIST Rapid Communications in Mass Spectrometry ·Tyler B. Coplen, Willi A. Brand, M. Gehre, Manfred Gröning, Harro A. J. Meijer, Blaza Toman, R. Michael Verkouteren	2006	3
12	The effect of N ₂ O on the isotopic composition of air‐CO ₂ samples Rapid Communications in Mass Spectrometry ·Prosenjit Ghosh, Willi A. Brand	2004	17
13	Continuous flow ² H/ ¹ H and ¹⁸ O/ ¹⁶ O analysis of water samples with dual inlet precision Rapid Communications in Mass Spectrometry ·Matthias Gehre, Heike Geilmann, Jürgen Richter, Roland A. Werner, Willi A. Brand	2004	221
14	A Possible Prebiotic Formation of Ammonia from Dinitrogen on Iron Sulfide Surfaces Angewandte Chemie International Edition ·Mark Dörr, Johannes Käßbohrer, Renate Grünert, Günter Kreisel, Willi A. Brand, Roland A. Werner, Heike Geilmann, Christina Apfel, Christian Robl, Wolfgang Weigand	2003	110
15	An interlaboratory study to test instrument performance of hydrogen dual-inlet isotope-ratio mass spectrometers Fresenius Journal of Analytical Chemistry ·Willi A. Brand, Tyler B. Coplen	2001	22
16	Extraction of CO ₂ from air samples for isotopic analysis and limits to ultra high precision δ ¹⁸ O determination in CO ₂ gas Rapid Communications in Mass Spectrometry ·Roland A. Werner, Michael Rothe, Willi A. Brand	2001	48
17	The Position Dependent¹⁵N Enrichment of Nitrous Oxide in the Stratosphere Isotopes in Environmental and Health Studies ·Thomas Röckmann, Jan Kaiser, Carl A. M. Brenninkmeijer, Willi A. Brand, R. Borchers, John N. Crowley, M. Wollenhaupt, Paul J. Crutzen	2001	0
18	Referencing strategies and techniques in stable isotope ratio analysis Rapid Communications in Mass Spectrometry ·Roland A. Werner, Willi A. Brand Hit paper breakdown →	2001	777
19	High Precision Isotope Ratio Monitoring Techniques in Mass Spectrometry Journal of Mass Spectrometry ·Willi A. Brand	1996	206
20	Isotope-ratio-monitoring gas chromatography-mass spectrometry: methods for isotopic calibration Organic Geochemistry ·Dawn A. Merritt, Willi A. Brand, John M. Hayes	1994	102

About Willi A. Brand

Willi A. Brand is a scholar working on Geochemistry and Petrology, Global and Planetary Change, Atmospheric Science, Ecology and Spectroscopy, having authored 135 papers that have together received 9.8k indexed citations. Recurring topics across this work include Isotope Analysis in Ecology (45 papers), Atmospheric and Environmental Gas Dynamics (33 papers), Groundwater and Isotope Geochemistry (25 papers), Mass Spectrometry Techniques and Applications (19 papers), Atmospheric chemistry and aerosols (18 papers), Radioactive contamination and transfer (13 papers), Plant Water Relations and Carbon Dynamics (13 papers) and Atmospheric Ozone and Climate (13 papers). The work is most often cited by research in Geochemistry and Petrology (1.6k citations), Atmospheric Science (2.8k citations), Ecology (3.4k citations), Global and Planetary Change (2.8k citations) and Paleontology (800 citations). Willi A. Brand has collaborated with scholars based in Germany, United States and Netherlands. Frequent co-authors include Tyler B. Coplen, Roland A. Werner, Manfred Gröning, Thomas Prohaska, Matthias Gehre, Heike Geilmann, Harro A. J. Meijer, Michael Berglund, Juris Meija and Thomas Walczyk. Their work appears in journals such as Rapid Communications in Mass Spectrometry, Isotopes in Environmental and Health Studies, Analytical Chemistry, Atmospheric measurement techniques and Pure and Applied Chemistry.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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