Citation Rankings
Highly Cited Researchers

Federal Institute of Science and Technology Highly Cited Researchers CitationNatural Sciences / Chemical Sciences Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
Switzerland
Juliane Hollender
Organic trace analysis
Environmental Fate
Biotransformation
Non-target analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,426
17,823
0.627
* Total Citation Counts Rankings
Ranking Based On Selection :2
Switzerland
Heinz Singer
Analytical Chemistry
Environmental Chemistry
Mass Spectrometry
non-target Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,648
10,401
0.529
* Total Citation Counts Rankings
Ranking Based On Selection :3
Switzerland
Christa McArdell
Environmental Chemistry
Organic Trace Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,677
8,554
0.458
* Total Citation Counts Rankings
Ranking Based On Selection :4
Switzerland
Kathrin Fenner
Environmental Chemistry
Microbial Biotransformation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,127
9,170
0.569
* Total Citation Counts Rankings
Ranking Based On Selection :5
Switzerland
Carsten J. Schubert
Methane emission and oxidation
organic matter degradation
paleo reconstructions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,077
5,881
0.418
* Total Citation Counts Rankings
Ranking Based On Selection :6
Switzerland
Thomas Hofstetter
Environmental organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,146
6,574
0.500
* Total Citation Counts Rankings
Ranking Based On Selection :7
Switzerland
Niksa Odzak
Environmental Chemistry
Aquatic Chemistry
Water Chemistry
Speciation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,853
1,097
0.285
* Total Citation Counts Rankings
Ranking Based On Selection :8
Switzerland
Elisabeth M.-L. Janssen
Environmental Chemistry of Biomolecules
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,471
1,671
0.676
* Total Citation Counts Rankings
Ranking Based On Selection :9
Switzerland
Oliver F. Brandenberg
Biocatalysis
Directed Evolution
Green Chemistry
Plastic Biodegradation
Cyanotoxins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,455
1,046
0.719
* Total Citation Counts Rankings
Ranking Based On Selection :10
Switzerland
Jennifer Schollée
environmental chemistry
analytical chemistry
non-target analysis
transformation products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,350
1,111
0.823
* Total Citation Counts Rankings
Ranking Based On Selection :11
Switzerland
Enric Petrus
Computational Chemistry
Aqueous Speciation
Chemical Reaction Networks
Automation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
104
0.990
* Total Citation Counts Rankings
Rankings
23,564
Switzerland
438
3
Ranking Based On Selection: 1
Juliane Hollender
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,426
17,823
0.627
Organic trace analysis
Environmental Fate
Biotransformation
Non-target analysis
* Total Citation Counts Rankings
Rankings
40,322
Switzerland
732
6
Ranking Based On Selection: 2
Heinz Singer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,648
10,401
0.529
Analytical Chemistry
Environmental Chemistry
Mass Spectrometry
non-target Analysis
* Total Citation Counts Rankings
Rankings
43,126
Switzerland
793
7
Ranking Based On Selection: 3
Christa McArdell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,677
8,554
0.458
Environmental Chemistry
Organic Trace Analysis
* Total Citation Counts Rankings
Rankings
52,648
Switzerland
957
12
Ranking Based On Selection: 4
Kathrin Fenner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,127
9,170
0.569
Environmental Chemistry
Microbial Biotransformation
* Total Citation Counts Rankings
Rankings
62,944
Switzerland
1,133
14
Ranking Based On Selection: 5
Carsten J. Schubert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,077
5,881
0.418
Methane emission and oxidation
organic matter degradation
paleo reconstructions
* Total Citation Counts Rankings
Rankings
68,858
Switzerland
1,227
18
Ranking Based On Selection: 6
Thomas Hofstetter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,146
6,574
0.500
* Total Citation Counts Rankings
Rankings
254,489
Switzerland
3,607
47
Ranking Based On Selection: 7
Niksa Odzak
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,853
1,097
0.285
Environmental Chemistry
Aquatic Chemistry
Water Chemistry
Speciation
* Total Citation Counts Rankings
Rankings
367,796
Switzerland
4,862
61
Ranking Based On Selection: 8
Elisabeth M.-L. Janssen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,471
1,671
0.676
* Total Citation Counts Rankings
Rankings
534,600
Switzerland
6,652
82
Ranking Based On Selection: 9
Oliver F. Brandenberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,455
1,046
0.719
Biocatalysis
Directed Evolution
Green Chemistry
Plastic Biodegradation
Cyanotoxins
* Total Citation Counts Rankings
Rankings
559,989
Switzerland
6,891
85
Ranking Based On Selection: 10
Jennifer Schollée
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,350
1,111
0.823
environmental chemistry
analytical chemistry
non-target analysis
transformation products
* Total Citation Counts Rankings
Rankings
1,539,642
Switzerland
16,850
185
Ranking Based On Selection: 11
Enric Petrus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
104
0.990
Computational Chemistry
Aqueous Speciation
Chemical Reaction Networks
Automation