Citation Rankings
Highly Cited Researchers
Natural Sciences / Chemical Sciences Highly Cited Researchers 25 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Sample preparation techniques in AAS
Metallic soaps
Environmental analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,268
959
0.423
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Organic Chemistry
Natural Products Chemistry
Nutraceuticals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,126
1,314
0.618
* Total Citation Counts Rankings
Ranking Based On Selection: 3
chemistry
organic chemistry
natural products
nutriceuticals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,923
765
0.398
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Analytical and Environmental Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,599
678
0.424
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Oilfield chemicals
Nanotechnology
Electrochemistry and Corrosion
Surface Chemistry
Organic-Inorganic Hybrid Complexes.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,539
1,267
0.823
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Environmental Chemistry
Water quality monitoring
risk assessment
waste utilization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,267
746
0.589
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Inorganic synthesis
bioactivities of compounds of inorganic and organic origin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
715
442
0.618
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Organic Chemistry
Medicinal Chemistry
synthesis of novel compounds with bioactivities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
655
265
0.405
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Chemical thermodynamics
Kinetics
Corrosion Inhibition
Adsorption studies
cathodic protection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
440
210
0.477
* Total Citation Counts Rankings
Ranking Based On Selection: 10
organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
345
182
0.528
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Analytical Chemistry Air pollution Environmental and toxicology chemistry
water pollution
health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
176
0.529
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Clinical Chemistry
Immunochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
323
119
0.368
* Total Citation Counts Rankings
Ranking Based On Selection: 13
PH.D Physical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
287
86
0.300
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Applied Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
279
76
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Analytical Chemistry
Chemistry Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
250
161
0.644
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Pharmaceutical
Medicinal and Natural Products Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
246
157
0.638
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Physical Chemistry
Corrosion Inhibition
Computational Chemistry
Electrochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
120
0.502
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Inorganic chemistry/Bioinorganic and Nano Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
209
106
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Inorganic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
167
0.861
* Total Citation Counts Rankings
Ranking Based On Selection: 20
inorganic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161
150
0.932
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Analytical chemistry
Pharmaceutial analysis
Pharmaceutial Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94
27
0.287
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Synthetic Organic Chemistry
Medicinal Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89
66
0.742
* Total Citation Counts Rankings
Ranking Based On Selection: 23
inorganic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82
59
0.720
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Drug discovery
pharmacokinetics
malaria
diabetes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70
48
0.686
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Analytical Chemistry
Polymer Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
19
0.950
* Total Citation Counts Rankings
Rankings
408,720
662
4
Ranking Based On Selection: 1
Anthony Paul Udoh
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,268
959
0.423
Sample preparation techniques in AAS
Metallic soaps
Environmental analysis
* Total Citation Counts Rankings
Rankings
428,688
726
6
Ranking Based On Selection: 2
Emmanuel E. Essien
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,126
1,314
0.618
Organic Chemistry
Natural Products Chemistry
Nutraceuticals
* Total Citation Counts Rankings
Rankings
460,566
876
8
Ranking Based On Selection: 3
Bassey S Antia
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,923
765
0.398
chemistry
organic chemistry
natural products
nutriceuticals
* Total Citation Counts Rankings
Rankings
521,801
1,125
12
Ranking Based On Selection: 4
Imaobong I. Udousoro
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,599
678
0.424
Analytical and Environmental Chemistry
* Total Citation Counts Rankings
Rankings
534,622
1,208
14
Ranking Based On Selection: 5
Ekemini Ituen
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,539
1,267
0.823
Oilfield chemicals
Nanotechnology
Electrochemistry and Corrosion
Surface Chemistry
Organic-Inorganic Hybrid Complexes.
* Total Citation Counts Rankings
Rankings
602,027
1,567
20
Ranking Based On Selection: 6
Edu Inam
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,267
746
0.589
Environmental Chemistry
Water quality monitoring
risk assessment
waste utilization
* Total Citation Counts Rankings
Rankings
804,794
3,969
61
Ranking Based On Selection: 7
Victor Mkpenie
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
715
442
0.618
Inorganic synthesis
bioactivities of compounds of inorganic and organic origin
* Total Citation Counts Rankings
Rankings
834,503
4,485
69
Ranking Based On Selection: 8
Basil Nse Ita
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
655
265
0.405
Organic Chemistry
Medicinal Chemistry
synthesis of novel compounds with bioactivities
* Total Citation Counts Rankings
Rankings
982,045
7,254
107
Ranking Based On Selection: 9
Inemesit Asuquo Akpan
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
440
210
0.477
Chemical thermodynamics
Kinetics
Corrosion Inhibition
Adsorption studies
cathodic protection
* Total Citation Counts Rankings
Rankings
1,080,437
9,206
150
Ranking Based On Selection: 10
İmaobong Daniel
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
345
182
0.528
* Total Citation Counts Rankings
Rankings
1,094,997
9,497
156
Ranking Based On Selection: 11
Eno Anietie Moses
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
176
0.529
Analytical Chemistry Air pollution Environmental and toxicology chemistry
water pollution
health
* Total Citation Counts Rankings
Rankings
1,107,844
9,746
158
Ranking Based On Selection: 12
Itemobong Ekaidem
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
323
119
0.368
Clinical Chemistry
Immunochemistry
* Total Citation Counts Rankings
Rankings
1,157,435
10,777
180
Ranking Based On Selection: 13
Ekerete Jackson
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
287
86
0.300
* Total Citation Counts Rankings
Rankings
1,169,624
11,007
183
Ranking Based On Selection: 14
Joseph Alonso
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
279
76
0.272
* Total Citation Counts Rankings
Rankings
1,215,826
12,033
202
Ranking Based On Selection: 15
Rebecca Ufonabasi Etiubon
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
250
161
0.644
Analytical Chemistry
Chemistry Education
* Total Citation Counts Rankings
Rankings
1,222,760
12,188
205
Ranking Based On Selection: 16
Ekarika Johnson
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
246
157
0.638
Pharmaceutical
Medicinal and Natural Products Chemistry
* Total Citation Counts Rankings
Rankings
1,235,562
12,450
208
Ranking Based On Selection: 17
Okon U. Abakedi.
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
239
120
0.502
Physical Chemistry
Corrosion Inhibition
Computational Chemistry
Electrochemistry
* Total Citation Counts Rankings
Rankings
1,293,236
13,687
230
Ranking Based On Selection: 18
Atim Sunday Johnson
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
209
106
0.507
Inorganic chemistry/Bioinorganic and Nano Science
* Total Citation Counts Rankings
Rankings
1,324,404
14,326
243
Ranking Based On Selection: 19
Helen Solomon M. Etuk
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
167
0.861
* Total Citation Counts Rankings
Rankings
1,405,349
16,188
275
Ranking Based On Selection: 20
Idongesit Anweting
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161
150
0.932
* Total Citation Counts Rankings
Rankings
1,634,086
21,686
378
Ranking Based On Selection: 21
Offiong Edet Umoh
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94
27
0.287
Analytical chemistry
Pharmaceutial analysis
Pharmaceutial Chemistry
* Total Citation Counts Rankings
Rankings
1,654,293
22,219
390
Ranking Based On Selection: 22
Godwin Enin
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89
66
0.742
Synthetic Organic Chemistry
Medicinal Chemistry
* Total Citation Counts Rankings
Rankings
1,685,884
23,002
405
Ranking Based On Selection: 23
Nzikahyel - Simon
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82
59
0.720
* Total Citation Counts Rankings
Rankings
1,744,534
24,552
441
Ranking Based On Selection: 24
Aniekan Ebong
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70
48
0.686
Drug discovery
pharmacokinetics
malaria
diabetes
* Total Citation Counts Rankings
Rankings
2,102,383
35,345
652
Ranking Based On Selection: 25
Esther Unyime Etim
University of Uyo
Uyo, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
19
0.950
Analytical Chemistry
Polymer Chemistry