OOIR: Observatory of International Research

Papers

(The H4-Index of Critical Reviews in Analytical Chemistry is 29. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
A Critical Review on Chemical Speciation of Chlorine-Produced Oxidants in Seawater. Part 3: Chromatographic- and Mass Spectrometric-Based Methodologies	116
Detection of SARS-CoV-2 in Environment: Current Surveillance and Effective Data Management of COVID-19	89
Recent Advanced in MXene Research toward Biosensor Development	71
A Review on Thiazole Based Colorimetric and Fluorimetric Chemosensors for the Detection of Heavy Metal Ions	61
Nuclear Magnetic Resonance Spectroscopy for Quantitative Analysis: A Review for Its Application in the Chemical, Pharmaceutical and Medicinal Domains	53
Accurate Clinical Detection of Vitamin D by Mass Spectrometry: A Review	51
MicroRNA Sensors Based on CRISPR/Cas12a Technologies: Evolution From Indirect to Direct Detection	48
The Recent Progress in DNAzymes-Based Aptasensors for Thrombin Detection	46
Achievements of Graphene and Its Derivatives Materials on Electrochemical Drug Assays and Drug-DNA Interactions	45
Analytical Methodologies for the Estimation of Oxazolidinone Antibiotics as Key Members of anti-MRSA Arsenal: A Decade in Review	45
Research Progress of SERS Sensors Based on Hydrogen Peroxide and Related Substances	45
Recent Advancements in Colorimetric and Fluorescent pH Chemosensors: From Design Principles to Applications	40
Exploring the Mechanism of Anionic Chemosensing by Imidazoles: A Review	40
Real-Time Biosensing Bacteria and Virus with Quartz Crystal Microbalance: Recent Advances, Opportunities, and Challenges	39
Determination of Pathogens by Electrophoretic and Spectrometric Techniques	39
A Review on Conducting Polymers for Colorimetric and Fluorescent Detection of Noble Metal Ions (Ag ⁺ , Pd ²⁺ , Pt	39
Bioactive Flavonoids: A Comprehensive Review on Pharmacokinetics and Analytical Aspects	37
Recent Advances in Catecholamines Analytical Detection Methods and Their Pretreatment Technologies	37
Recent Applications in Analytical Techniques of Microplastics	35
Chromatographic Methods for the Determination of Rifampicin, Isoniazid, Pyrazinamide, Ethambutol, and Main Metabolites in Biological Samples: A Review	35
Technological Advancement and Trend in Selective Bioanalytical Sample Extraction through State of the Art 3-D Printing Techniques Aiming ‘Sorbent Customization as per need’	35
A Systematic Review of Chromatographic Methods for the Analysis of Plastic Additives in Fisheries and Aquaculture Products	34
Statement of Retraction: Recent Progress in Aptamer-Functionalized Metal-Organic Frameworks-Based Optical and Electrochemical Sensors for Detection of Mycotoxins	33
Trends in the Analysis and Exploration of per- and Polyfluoroalkyl Substances (PFAS) in Environmental Matrices: A Review	32
Detection of Environmental Microfiber Pollutants through Vibrational Spectroscopic Techniques: Recent Advances of Environmental Monitoring and Future Prospects	31

Graphite Phase Carbon Nitride Nanosheets-Based Fluorescent Sensors for Analysis and Detection	30
2D MXene-Based Nanoscale Materials for Electrochemical Sensing Toward the Detection of Hazardous Pollutants: A Perspective	30
The Analytical Evolution of Glibenclamide (Glyburide) Antidiabetic Agents: Analytical Tools, Challenges, and Future Trends	30
Advancements in Biosensors for Point-of-Care Testing of Nucleic Acid	30