Citation Rankings
Highly Cited Researchers

Natural Sciences / Chemical Sciences Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) 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
Egypt
safa'a mohamed riad
Environmental Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
450
301
0.669
* Total Citation Counts Rankings
Ranking Based On Selection :2
Egypt
Heba T. Elbalkiny
analytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
223
0.965
* Total Citation Counts Rankings
Ranking Based On Selection :4
Egypt
Omnia Ali Mahmoud El-Naem
spectrochemistry
Chromatography
Electrochemistry
Analytical chemistry
Instrumental analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
176
160
0.909
* Total Citation Counts Rankings
Ranking Based On Selection :5
Egypt
Mariam Sameh Hussein Kazem
Organic Chemistry
Synthesis
Heterocyclic synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103
95
0.922
* Total Citation Counts Rankings
Ranking Based On Selection :8
Egypt
Yassmin Abdel Kader Shammakh
Inorganic Chemistry
Analytical Chemistry
Physical Chemistry and Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
23
0.852
* Total Citation Counts Rankings
Rankings
960,922
Egypt
6,279
25
Ranking Based On Selection: 1
safa'a mohamed riad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
450
301
0.669
* Total Citation Counts Rankings
Rankings
1,233,577
Egypt
9,313
48
Ranking Based On Selection: 2
Heba T. Elbalkiny
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
223
0.965
* Total Citation Counts Rankings
Rankings
1,322,692
Egypt
11,020
56
Ranking Based On Selection: 3
Rana H. Refaey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
187
1.000
* Total Citation Counts Rankings
Rankings
1,349,369
Egypt
11,540
58
Ranking Based On Selection: 4
Omnia Ali Mahmoud El-Naem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
176
160
0.909
spectrochemistry
Chromatography
Electrochemistry
Analytical chemistry
Instrumental analysis
* Total Citation Counts Rankings
Rankings
1,573,792
Egypt
15,868
78
Ranking Based On Selection: 5
Mariam Sameh Hussein Kazem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103
95
0.922
Organic Chemistry
Synthesis
Heterocyclic synthesis
* Total Citation Counts Rankings
Rankings
1,610,027
Egypt
16,623
83
Ranking Based On Selection: 6
Rana M. El-Masry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
94
86
0.915
* Total Citation Counts Rankings
Rankings
1,891,331
Egypt
22,418
135
Ranking Based On Selection: 7
Heba El Sayed Ahmed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
39
0.951
* Total Citation Counts Rankings
Rankings
2,005,820
Egypt
25,086
155
Ranking Based On Selection: 8
Yassmin Abdel Kader Shammakh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
23
0.852
Inorganic Chemistry
Analytical Chemistry
Physical Chemistry and Nanotechnology