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" (870,053 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.
Phytochemistry
antibiotics
Metrics
H-Index
i10 Index
Citation
73
222
23,655
Organic Chemistry
Synthetic Organic Chemistry
Food Chemistry
Environmental Chemistry
Medicinal
Metrics
H-Index
i10 Index
Citation
50
180
9,644
Organometallic Polymers
Coordination Chemistry
Materials Chemistry
OLEDs
Solar Cells
Metrics
H-Index
i10 Index
Citation
46
107
8,021
Analytical and Applied Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
37
77
9,259
Natural Product Chemistry
Organic Chemistry
Organic Synthesis
Metrics
H-Index
i10 Index
Citation
37
81
4,524
Analytical Chemistry/Chemometrics/Food Chemistry/Waste polymer recycling
Metrics
H-Index
i10 Index
Citation
29
66
2,866
Pharmaceutical analytical chemistry
flow techniques
chiral separations.
Metrics
H-Index
i10 Index
Citation
29
85
2,688
Physical Chemistry
Chemical Physics
Biophysical Chemistry
Laser Spectroscopy
Ultrafast Dynamics
Metrics
H-Index
i10 Index
Citation
28
51
2,750
Management
Strategic Planning
Chemistry
Reserch
Reading
Metrics
H-Index
i10 Index
Citation
28
58
2,427
Analytical techniques
Chemiluminescence
Nanomaterial
preconcentration
Fluorescence
Metrics
H-Index
i10 Index
Citation
27
48
2,049
Inorganic Chemistry
Organometallic
Lanthanide Photophysics
Organic Light Emitting Diodes
Metrics
H-Index
i10 Index
Citation
25
33
1,436
Synthesis and Natural products
Metrics
H-Index
i10 Index
Citation
25
32
2,553
Analytical Chemistry
Microfluidics
Lab on a chip
Lab on a paper
Metrics
H-Index
i10 Index
Citation
24
49
1,951
Electroanalytical Chemistry
Electrochemical Biosensors
Nanotechnology
Metrics
H-Index
i10 Index
Citation
23
29
1,411
Chemical Process Engineering
Metrics
H-Index
i10 Index
Citation
21
24
2,866
Catalysis
Chemical Enhanced Oil Recovery
Gas treatment
Metrics
H-Index
i10 Index
Citation
20
28
1,039
Nanotechnology
Metrics
H-Index
i10 Index
Citation
19
28
1,352
Inorganic Chemistry
Metrics
H-Index
i10 Index
Citation
19
27
1,201
Colloid Science
Solar Desalination
Membrane
Waste water Treatment
Biogas Production
Metrics
H-Index
i10 Index
Citation
18
22
2,295
Electrochemical Sensors
Corrosion Protection and Materials Sciences
Metrics
H-Index
i10 Index
Citation
17
26
1,999
Inorganic chemistry
Metrics
H-Index
i10 Index
Citation
16
22
720
CO2
Metrics
H-Index
i10 Index
Citation
15
20
709
Organic Synthesis
Metrics
H-Index
i10 Index
Citation
15
27
985
Proton transfer
Metrics
H-Index
i10 Index
Citation
15
18
799
Organic synthesis
Metrics
H-Index
i10 Index
Citation
14
19
898
Chemistry
Metrics
H-Index
i10 Index
Citation
14
22
736
Essential Oils and Fragrances from Natural Sources
Metrics
H-Index
i10 Index
Citation
14
15
943
Medicinal chemistry
Metrics
H-Index
i10 Index
Citation
14
17
1,232
Heterogeneous catalysis
Biomass conversion
Metrics
H-Index
i10 Index
Citation
13
14
582
Environmental Chemistry
Biotechnology
Pollution
Heavy metals
Metrics
H-Index
i10 Index
Citation
13
18
454
Chemistry
Metrics
H-Index
i10 Index
Citation
13
13
860
organic chemistry
catalysis
Metrics
H-Index
i10 Index
Citation
12
13
971
Analytical Chemistry
Pharmaceutical Analysis
Kinetics
Biomass
Biochar
Metrics
H-Index
i10 Index
Citation
12
14
865
* Rankings
Ranking Based
On Selection: 34
Organic Chemistry
Analytical Chemistry
Organic Synthesis
Natural Products Chemistry
Drug Discovery
Metrics
H-Index
i10 Index
Citation
9
9
188
* Rankings
Ranking Based
On Selection: 35
Synthesis and characterization
Nanomaterials
Molecular imaging
Fluorescence
Ligands
Metrics
H-Index
i10 Index
Citation
8
7
256
* Rankings
Ranking Based
On Selection: 36
Mineralogy and Geochemistry
Metrics
H-Index
i10 Index
Citation
8
8
203
* Rankings
Ranking Based
On Selection: 37
Analytical Chemistry
Pharmaceutical
Cyclic voltammetry analysis of Organometallic chemistry
electroanalysis of Ferroelectric
Metrics
H-Index
i10 Index
Citation
8
7
188
* Rankings
Ranking Based
On Selection: 38
Structural- and Bio-Inorganic Chemistry
Metrics
H-Index
i10 Index
Citation
8
8
461
* Rankings
Ranking Based
On Selection: 39
Synthetic and Computational chemistry
Metrics
H-Index
i10 Index
Citation
7
6
122
* Rankings
Ranking Based
On Selection: 40
Analytical Chemistry-Nano-Chemistry- Environmental Studies and Advanced Membrane Technology
Metrics
H-Index
i10 Index
Citation
7
6
186
* Rankings
Ranking Based
On Selection: 41
Organic Synthesis
Metrics
H-Index
i10 Index
Citation
6
5
140
* Rankings
Ranking Based
On Selection: 42
Chemistry
Synthetic Chemistry
Analytical Chemistry
Natural Products Chemistry
NMR
Metrics
H-Index
i10 Index
Citation
6
6
124
* Rankings
Ranking Based
On Selection: 43
Organo-catalyst
Organic synthesis
Polymer synthesis
Organic chemistry
Metrics
H-Index
i10 Index
Citation
5
5
102
* Rankings
Ranking Based
On Selection: 44
Analytical Chemistry
Method Development
Analysis of Foods
water
Pharmaceuticals etc...
Metrics
H-Index
i10 Index
Citation
4
4
739
* Rankings
Ranking Based
On Selection: 45
Inorganic chemistry
Metal Complexes
Crystallography
Biological activities
Metrics
H-Index
i10 Index
Citation
4
2
54
* Rankings
Ranking Based
On Selection: 46
Chemistry and Chemical eng
Metrics
H-Index
i10 Index
Citation
4
2
39
* Rankings
Ranking Based
On Selection: 47
Process Intensification
Reactive Distillation. Photocatalysis
Water Treatment
Desalination
Metrics
H-Index
i10 Index
Citation
4
1
63
* Rankings
Ranking Based
On Selection: 48
Chemistry
Metrics
H-Index
i10 Index
Citation
3
2
29
* Rankings
Ranking Based
On Selection: 49
organic synthesis
supercapacitors
Metrics
H-Index
i10 Index
Citation
3
1
192
* Rankings
Ranking Based
On Selection: 50
Chemistry
Metrics
H-Index
i10 Index
Citation
2
1
72
* Rankings
Ranking Based
On Selection: 51
Organic Chemistry
Medicinal Chemistry
Metrics
H-Index
i10 Index
Citation
2
0
19
* Rankings
Ranking Based
On Selection: 52
Organic Chemistry
Metrics
H-Index
i10 Index
Citation
2
1
12
Simon Gibbons
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
73
222
23,655
Mohammad Amzad Hossain
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
50
180
9,644
Organic Chemistry
Synthetic Organic Chemistry
Food Chemistry
Environmental Chemistry
Medicinal
Muhammad S Khan
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
46
107
8,021
Organometallic Polymers
Coordination Chemistry
Materials Chemistry
OLEDs
Solar Cells
Rengaraj Selvaraj
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
37
77
9,259
Analytical and Applied Environmental Chemistry
Ahmed Al Harrasi
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
37
81
4,524
Natural Product Chemistry
Organic Chemistry
Organic Synthesis
Analytical Chemistry/Chemometrics/Food Chemistry/Waste polymer recycling
Fakhreldin O Suliman
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
29
85
2,688
Pharmaceutical analytical chemistry
flow techniques
chiral separations.
Osama K Abou Zied
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
28
51
2,750
Physical Chemistry
Chemical Physics
Biophysical Chemistry
Laser Spectroscopy
Ultrafast Dynamics
Salma Al Kindy
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
28
58
2,427
Management
Strategic Planning
Chemistry
Reserch
Reading
Javad Hassanzadeh
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
27
48
2,049
Analytical techniques
Chemiluminescence
Nanomaterial
preconcentration
Fluorescence
Rashid Ilmi
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
25
33
1,436
Inorganic Chemistry
Organometallic
Lanthanide Photophysics
Organic Light Emitting Diodes
Majekodunmi O Fatope
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
25
32
2,553
Haider Al Lawati
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
24
49
1,951
Analytical Chemistry
Microfluidics
Lab on a chip
Lab on a paper
Jahangir Ahmad Rather
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
23
29
1,411
Electroanalytical Chemistry
Electrochemical Biosensors
Nanotechnology
Rashid Al Hajri
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,039
Catalysis
Chemical Enhanced Oil Recovery
Gas treatment
Mohammad Changez
A'Sharqiyah University
Ibra, Oman
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,352
Musa S Shongwe
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,201
Ha Mousa
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
18
22
2,295
Colloid Science
Solar Desalination
Membrane
Waste water Treatment
Biogas Production
Emad A Khudaish
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,999
Electrochemical Sensors
Corrosion Protection and Materials Sciences
Nawal K Al Rasbi
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
16
22
720
Svetlana Rudyk
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
15
20
709
Raid Abdel Jalil
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
15
27
985
John Husband
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
15
18
799
Saleh N Al Busafi
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
14
19
898
Wajdi Michael Zoghaib
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
14
22
736
Salim H Alsaidi
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
14
15
943
Essential Oils and Fragrances from Natural Sources
Srinivasa Rao Ginjupalli
Higher College of Technology
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
13
14
582
Heterogeneous catalysis
Biomass conversion
Salma K Al Musharafi
Metrics
H-Index
i10 Index
Citation Counts
13
18
454
Environmental Chemistry
Biotechnology
Pollution
Heavy metals
Abdullah M Al Hamdi
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
13
13
860
Hamad Al Mamari
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
12
13
971
Ayaz Mohd
Metrics
H-Index
i10 Index
Citation Counts
12
14
865
Analytical Chemistry
Pharmaceutical Analysis
Kinetics
Biomass
Biochar
Sulaiman Nasser Al-Shidhani
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
9
9
188
Organic Chemistry
Analytical Chemistry
Organic Synthesis
Natural Products Chemistry
Drug Discovery
Abdullah Khamis Ali Al Saidi|Al Saidi Abdullah Khamis Ali, AKAA Saidi, AKA Al Saidi
Dhofar University
Salalah, Oman
Metrics
H-Index
i10 Index
Citation Counts
8
7
256
Synthesis and characterization
Nanomaterials
Molecular imaging
Fluorescence
Ligands
André J Pinto
German University of Technology in Oman
Al Athaiba, Oman
Metrics
H-Index
i10 Index
Citation Counts
8
8
203
Analytical Chemistry
Pharmaceutical
Cyclic voltammetry analysis of Organometallic chemistry
electroanalysis of Ferroelectric
Faizah Al Mjeni
Sultan Qaboos University
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
8
8
461
Structural- and Bio-Inorganic Chemistry
Namy George
Metrics
H-Index
i10 Index
Citation Counts
7
6
122
Synthetic and Computational chemistry
Issa Sulaiman Issa Al-Husaini
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
7
6
186
Analytical Chemistry-Nano-Chemistry- Environmental Studies and Advanced Membrane Technology
Thuraya Al Harthy
A'Sharqiyah University
Ibra, Oman
Metrics
H-Index
i10 Index
Citation Counts
6
5
140
Chemistry
Synthetic Chemistry
Analytical Chemistry
Natural Products Chemistry
NMR
Amirhossein Ebrahimi
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
5
5
102
Organo-catalyst
Organic synthesis
Polymer synthesis
Organic chemistry
Pandurang N Patil
Higher College of Technology
Muscat, Oman
Metrics
H-Index
i10 Index
Citation Counts
4
4
739
Analytical Chemistry
Method Development
Analysis of Foods
water
Pharmaceuticals etc...
Inorganic chemistry
Metal Complexes
Crystallography
Biological activities
Alaa Saif
Metrics
H-Index
i10 Index
Citation Counts
4
2
39
Ganesh Nagraj Patil
Metrics
H-Index
i10 Index
Citation Counts
4
1
63
Process Intensification
Reactive Distillation. Photocatalysis
Water Treatment
Desalination
Sulaiman Al-Isaee
Metrics
H-Index
i10 Index
Citation Counts
3
2
29
Muhammad Azeem Shakil
University of Nizwa
Nizwa, Oman
Metrics
H-Index
i10 Index
Citation Counts
3
1
192
organic synthesis
supercapacitors
Organic Chemistry
Medicinal Chemistry
Ahmad Hanouneh
Metrics
H-Index
i10 Index
Citation Counts
2
1
12