Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,927 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.
Electrochemistry and Catalysis (Including water desalination and Defluoridation)
Metrics
H-Index
i10 Index
Citation
27
53
2,215
Chemistry
Nanomaterials
Catalysis
Green Chemistry
Metrics
H-Index
i10 Index
Citation
25
42
4,123
First interest
Second interest
...nanomaterials-Heterogeneous catalysts-renewable energy
Metrics
H-Index
i10 Index
Citation
22
31
1,859
Natural products research & related fields
Metrics
H-Index
i10 Index
Citation
21
34
1,263
Marine chemistry
analytical chemistry
pesticide chemistry
mariculture
alternative livelihoods
Metrics
H-Index
i10 Index
Citation
19
34
1,401
Phytochemistry
Metrics
H-Index
i10 Index
Citation
19
26
1,767
Chemical Analysis
Chemicals Management
Quality Control & Assurance
Environmental Pollution
Heavy Metal Speciation
Metrics
H-Index
i10 Index
Citation
17
25
933
Environmental Analytical Chemistry
Marine Science
public health
Marine pollution
Metrics
H-Index
i10 Index
Citation
15
23
606
Analytical and Environmental Chemistry
Chemistry and Analysis of Pesticides
Persistent Organic Pollutants & Other Pollutants
Metrics
H-Index
i10 Index
Citation
15
15
609
* Rankings
Ranking Based On Selection :10
Soil microbiology
Plant-microbial interactions
microbiology of Agricultural pests
Metrics
H-Index
i10 Index
Citation
12
18
465
Exposure assessment of chemicals and their related effects
Metrics
H-Index
i10 Index
Citation
11
11
1,034
* Rankings
Ranking Based On Selection :12
Natural Products Chemistry
Organic Synthesis
Metrics
H-Index
i10 Index
Citation
11
12
579
* Rankings
Ranking Based On Selection :13
Analytical Chemistry
Environmental Chemistry and Chemometrics
Metrics
H-Index
i10 Index
Citation
10
11
278
* Rankings
Ranking Based On Selection :14
Antimalarial Drug Resistance
Metrics
H-Index
i10 Index
Citation
10
11
650
* Rankings
Ranking Based On Selection :15
Chemistry
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
9
9
276
* Rankings
Ranking Based On Selection :16
Electrochemistry
Polymer chemistry
Environmental chemistry
Metrics
H-Index
i10 Index
Citation
9
9
312
* Rankings
Ranking Based On Selection :17
Bioinorganic Chemistry
Computation Chemistry and Natural Product Chemistry
Metrics
H-Index
i10 Index
Citation
9
8
320
* Rankings
Ranking Based On Selection :18
Nanomaterials
catalysis
green chemistry technology
Metrics
H-Index
i10 Index
Citation
9
7
490
* Rankings
Ranking Based On Selection :19
Material science and nano-technology
Metrics
H-Index
i10 Index
Citation
8
7
126
* Rankings
Ranking Based On Selection :20
Inorganic and Chemical Process Engineering
Water and wastewater treatment technologies
Metrics
H-Index
i10 Index
Citation
7
6
387
* Rankings
Ranking Based On Selection :21
Physical Chemistry
Metrics
H-Index
i10 Index
Citation
7
5
150
* Rankings
Ranking Based On Selection :22
Organic chemistry
Bioanalytical chemistry
Water quality
Quality Assurance & Risk Management in Higher Education systems
Metrics
H-Index
i10 Index
Citation
7
5
184
* Rankings
Ranking Based On Selection :23
Organic synthesis
fluorosugars
fluorohydrins
environmental pollution
Metrics
H-Index
i10 Index
Citation
6
6
169
* Rankings
Ranking Based On Selection :24
Environmental Chemistry
Analytical Chemistry
Organic Chemistry
Metrics
H-Index
i10 Index
Citation
6
5
257
* Rankings
Ranking Based On Selection :25
Polymer and surfactant flooding
nanoparticles in EOR
Organic chemistry.
Metrics
H-Index
i10 Index
Citation
6
5
221
* Rankings
Ranking Based On Selection :26
Polymer Chemistry
Hydrogel nanocomposites
Drug delivery
Phytochemistry
Metrics
H-Index
i10 Index
Citation
6
5
116
* Rankings
Ranking Based On Selection :27
Textile chemistry
Material chemistry and Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
6
4
208
* Rankings
Ranking Based On Selection :28
General chemistry
Organic chemistry
Chemistry of Natural Products
Biochemistry
Metrics
H-Index
i10 Index
Citation
6
4
77
* Rankings
Ranking Based On Selection :29
Organic Chemistry synthesis
Natural Products
Biochemistry
Metrics
H-Index
i10 Index
Citation
6
5
148
* Rankings
Ranking Based On Selection :30
Chemical Thermodynamics
Inorganic Chemistry
Physical Chemistry
Metrics
H-Index
i10 Index
Citation
6
3
104
* Rankings
Ranking Based On Selection :31
Surface Chemistry
Green Chemistry
Metrics
H-Index
i10 Index
Citation
5
5
82
* Rankings
Ranking Based On Selection :32
Natural Product Chemistry
Analytical chemistry
Functional Foods
Metrics
H-Index
i10 Index
Citation
5
4
139
* Rankings
Ranking Based On Selection :33
Surface chemistry
Metrics
H-Index
i10 Index
Citation
5
4
75
* Rankings
Ranking Based On Selection :34
Synthetic Organic Chemistry
Natural Product Chemistry
Forensic Chemistry
Metrics
H-Index
i10 Index
Citation
5
3
97
* Rankings
Ranking Based On Selection :35
Corrosion
Enhanced oil recovery
Drilling fluids
Flow assurance problems and Renewable energies
Metrics
H-Index
i10 Index
Citation
5
3
93
* Rankings
Ranking Based On Selection :36
carbohydrate chemistry
lignocellulosic biomass
biorefinery
biofuel
Metrics
H-Index
i10 Index
Citation
5
4
97
* Rankings
Ranking Based On Selection :37
Capacitive Deionization
Surface Chemistry
and Materials Sciences
Metrics
H-Index
i10 Index
Citation
4
4
180
* Rankings
Ranking Based On Selection :38
Computational and Theoretical Chemistry
Metrics
H-Index
i10 Index
Citation
4
1
49
* Rankings
Ranking Based On Selection :39
physical organic chemistry
Metrics
H-Index
i10 Index
Citation
4
4
109
* Rankings
Ranking Based On Selection :40
Chemistry
Metrics
H-Index
i10 Index
Citation
4
3
88
* Rankings
Ranking Based On Selection :41
Analytical Chemistry
Natural Products and Beverage Products
Metrics
H-Index
i10 Index
Citation
4
3
58
* Rankings
Ranking Based On Selection :42
Organic Chemistry
Biochemistry
Natural Products
Metrics
H-Index
i10 Index
Citation
4
0
33
* Rankings
Ranking Based On Selection :43
Environmental Toxicology
Analytical and Environmental Chemistry
Aquatic ecology and water quality
Metrics
H-Index
i10 Index
Citation
4
2
42
* Rankings
Ranking Based On Selection :44
Oil field Chemistry
Unconventional oil&gas
Organic Chemistry
Material Science and Climate Change
Metrics
H-Index
i10 Index
Citation
3
3
158
* Rankings
Ranking Based On Selection :45
Organic Chemistry
Agricultural Science
Natural Products
Polymer Chemistry
Spectroscopy
Metrics
H-Index
i10 Index
Citation
3
3
93
* Rankings
Ranking Based On Selection :46
Organic Chemistry
Applied Chemistry and Synthesis Chemistry
Metrics
H-Index
i10 Index
Citation
3
2
67
* Rankings
Ranking Based On Selection :47
Air Pollution Control
Natural Gas Storage
Environmental Chemistry
Mining Sustainability
Metrics
H-Index
i10 Index
Citation
3
1
86
* Rankings
Ranking Based On Selection :48
science/chemistry education
computer simulations and animations integration in teaching
science
Metrics
H-Index
i10 Index
Citation
3
1
31
* Rankings
Ranking Based On Selection :49
Natural Product Chemistry
Coordination Chemistry
Organic Spectroscopy
Biological Assays
Metrics
H-Index
i10 Index
Citation
3
1
29
* Rankings
Ranking Based On Selection :50
electrochemistry
electrosynthesis
corrosion studies
chemical kinetics and surface chemistry
Metrics
H-Index
i10 Index
Citation
2
2
38
* Rankings
Ranking Based On Selection :51
Analytical Chemistry
Materials Science
Water quality research
Metrics
H-Index
i10 Index
Citation
2
2
28
* Rankings
Ranking Based On Selection :52
Inorganic Chemistry and Computational Chemistry
Metrics
H-Index
i10 Index
Citation
2
1
37
* Rankings
Ranking Based On Selection :53
Organic Chemistry
Polymer Chemistry
Stereo Chemistry
Metrics
H-Index
i10 Index
Citation
2
1
21
* Rankings
Ranking Based On Selection :54
geochemistry
analytical chemistry
radio waste immobilization
chemical decontamination
Metrics
H-Index
i10 Index
Citation
2
0
14
* Rankings
Ranking Based On Selection :55
Analytical chemistry
Metrics
H-Index
i10 Index
Citation
2
0
9
* Rankings
Ranking Based On Selection :56
Chemistry
Marine geochemistry
instrumentation
Metrics
H-Index
i10 Index
Citation
2
0
18
* Rankings
Ranking Based On Selection :57
Computational Chemistry
Analytical chemistry
Natural Products and Organic Synthesis
Metrics
H-Index
i10 Index
Citation
1
0
7
* Rankings
Ranking Based On Selection :58
Drug discovery and development
Metrics
H-Index
i10 Index
Citation
1
0
7
* Rankings
Ranking Based On Selection :59
Environmental Chemistry
Marine Chemistry and Pollution Control
Aquatic Chemistry
Organic Chemistry
Analytical Chemistry.
Metrics
H-Index
i10 Index
Citation
1
0
6
* Rankings
Ranking Based On Selection :60
Analytical Chemistry
Metrics
H-Index
i10 Index
Citation
1
0
4
* Rankings
Ranking Based On Selection :61
Organic Chemistry
Computational Chemistry
Natural Product Chemistry and Food Chemistry
Metrics
H-Index
i10 Index
Citation
1
0
2
Revocatus Machunda
Metrics
H-Index
i10 Index
Citation Counts
27
53
2,215
Electrochemistry and Catalysis (Including water desalination and Defluoridation)
Egid Beatus Mubofu
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
25
42
4,123
Chemistry
Nanomaterials
Catalysis
Green Chemistry
Godlisten N. Shao
Metrics
H-Index
i10 Index
Citation Counts
22
31
1,859
First interest
Second interest
...nanomaterials-Heterogeneous catalysts-renewable energy
Nyandoro, SS
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,263
Natural products research & related fields
Aviti John Mmochi
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
19
34
1,401
Marine chemistry
analytical chemistry
pesticide chemistry
mariculture
alternative livelihoods
Benson Peter Mugaka
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,767
OC Othman
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
17
25
933
Chemical Analysis
Chemicals Management
Quality Control & Assurance
Environmental Pollution
Heavy Metal Speciation
Mohammed Sheikh
State University of Zanzibar
Zanzibar City, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
15
23
606
Environmental Analytical Chemistry
Marine Science
public health
Marine pollution
John AM Mahugija
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
15
15
609
Analytical and Environmental Chemistry
Chemistry and Analysis of Pesticides
Persistent Organic Pollutants & Other Pollutants
Hamisi Tindwa
Sokoine University of Agriculture
Morogoro, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
12
18
465
Soil microbiology
Plant-microbial interactions
microbiology of Agricultural pests
Ezra J. Mrema
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,034
Exposure assessment of chemicals and their related effects
Quintino A. Mgani
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
11
12
579
Natural Products Chemistry
Organic Synthesis
Kessy F. Kilulya
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
10
11
278
Analytical Chemistry
Environmental Chemistry and Chemometrics
Allen Lewis Malisa
Sokoine University of Agriculture
Morogoro, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
10
11
650
Josephat Saria
Open University of Tanzania
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
9
9
276
Chemistry
Environmental Chemistry
Joseph Yoeza Naimani Philip
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
9
9
312
Electrochemistry
Polymer chemistry
Environmental chemistry
Regina P. Mtei
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
9
8
320
Bioinorganic Chemistry
Computation Chemistry and Natural Product Chemistry
James Eg Mdoe
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
9
7
490
Nanomaterials
catalysis
green chemistry technology
Grace Ansgar Kinunda
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
8
7
126
Material science and nano-technology
Hezron Timothy Mwakabona
Metrics
H-Index
i10 Index
Citation Counts
7
6
387
Inorganic and Chemical Process Engineering
Water and wastewater treatment technologies
Yahya Makame
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
7
5
150
Elbert Mbukwa
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
7
5
184
Organic chemistry
Bioanalytical chemistry
Water quality
Quality Assurance & Risk Management in Higher Education systems
Lewis Mtashobya
Metrics
H-Index
i10 Index
Citation Counts
6
6
169
Organic synthesis
fluorosugars
fluorohydrins
environmental pollution
Emmanuel Mogusu
Metrics
H-Index
i10 Index
Citation Counts
6
5
257
Environmental Chemistry
Analytical Chemistry
Organic Chemistry
Athumani Omari Mmbuji|Athumani Omari
Arusha Technical College
Arusha, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
6
5
221
Polymer and surfactant flooding
nanoparticles in EOR
Organic chemistry.
Polymer Chemistry
Hydrogel nanocomposites
Drug delivery
Phytochemistry
Lutamyo Nambela
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
6
4
208
Textile chemistry
Material chemistry and Environmental Chemistry
Stephano Hanolo Mlozi
Metrics
H-Index
i10 Index
Citation Counts
6
4
77
General chemistry
Organic chemistry
Chemistry of Natural Products
Biochemistry
Clarence Anthon Mgina
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
6
5
148
Organic Chemistry synthesis
Natural Products
Biochemistry
Gervas Assey
Metrics
H-Index
i10 Index
Citation Counts
6
3
104
Chemical Thermodynamics
Inorganic Chemistry
Physical Chemistry
Surface Chemistry
Green Chemistry
Rogers Mwakalukwa
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
5
4
139
Natural Product Chemistry
Analytical chemistry
Functional Foods
Maikki Cullen
Institute of Finance Management
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
5
4
75
Bajarang Bali Lal Srivastava
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
5
3
97
Synthetic Organic Chemistry
Natural Product Chemistry
Forensic Chemistry
Emanuel Xwaymay Ricky|Emanuel Xwaymay Ricky
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
5
3
93
Corrosion
Enhanced oil recovery
Drilling fluids
Flow assurance problems and Renewable energies
Protibha Nath Banerjee
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
5
4
97
carbohydrate chemistry
lignocellulosic biomass
biorefinery
biofuel
Omari Sufiani
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
4
4
180
Capacitive Deionization
Surface Chemistry
and Materials Sciences
Fortunatus Rwegasira Jacob
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
4
1
49
Computational and Theoretical Chemistry
Bosco Bharathy
Metrics
H-Index
i10 Index
Citation Counts
4
4
109
Leonard Akwilapo
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
4
3
88
Khalfani Salim Sule
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
4
3
58
Analytical Chemistry
Natural Products and Beverage Products
Andrew Banyikwa
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
4
0
33
Organic Chemistry
Biochemistry
Natural Products
Awwaab Muhammad
State University of Zanzibar
Zanzibar City, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
4
2
42
Environmental Toxicology
Analytical and Environmental Chemistry
Aquatic ecology and water quality
Silvia John Mushi
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
3
3
158
Oil field Chemistry
Unconventional oil&gas
Organic Chemistry
Material Science and Climate Change
Wilhelm Malasi
Metrics
H-Index
i10 Index
Citation Counts
3
3
93
Organic Chemistry
Agricultural Science
Natural Products
Polymer Chemistry
Spectroscopy
Daniel Illakwahhi
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
3
2
67
Organic Chemistry
Applied Chemistry and Synthesis Chemistry
John Rugarabamu
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
3
1
86
Air Pollution Control
Natural Gas Storage
Environmental Chemistry
Mining Sustainability
Flavia Beichumila
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
3
1
31
science/chemistry education
computer simulations and animations integration in teaching
science
Dominic Sumary
Metrics
H-Index
i10 Index
Citation Counts
3
1
29
Natural Product Chemistry
Coordination Chemistry
Organic Spectroscopy
Biological Assays
electrochemistry
electrosynthesis
corrosion studies
chemical kinetics and surface chemistry
Edgar Christian Mapunda
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
2
2
28
Analytical Chemistry
Materials Science
Water quality research
Juma Mzume
Muslim University of Morogoro
Morogoro, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
2
1
37
Inorganic Chemistry and Computational Chemistry
Raphael Mgohamwende
Metrics
H-Index
i10 Index
Citation Counts
2
1
21
Organic Chemistry
Polymer Chemistry
Stereo Chemistry
Miguta Ngulimi
Metrics
H-Index
i10 Index
Citation Counts
2
0
14
geochemistry
analytical chemistry
radio waste immobilization
chemical decontamination
Murugan Thirumalai
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Ophery Ilomo
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
2
0
18
Chemistry
Marine geochemistry
instrumentation
Angelina Makaye
University of Dodoma
Dodoma, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
1
0
7
Computational Chemistry
Analytical chemistry
Natural Products and Organic Synthesis
Innocent Malisa
Muhimbili University of Health and Allied Sciences
Dar es salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
1
0
7
Frank Nyanda
Dar Es Salaam Institute of Technology
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
1
0
6
Environmental Chemistry
Marine Chemistry and Pollution Control
Aquatic Chemistry
Organic Chemistry
Analytical Chemistry.
Kristina Alois
University of Dar Es Salaam
Dar es Salaam, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
Princess William
Stella Maris Mtwara University College
Mtwara, Tanzania, Tanzania
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
Organic Chemistry
Computational Chemistry
Natural Product Chemistry and Food Chemistry