OOIR: Observatory of International Research

Papers

(The TQCC of Chromatographia is 3. 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 2020-11-01 to 2024-11-01.)

Article	Citations
Size-Exclusion Chromatography: A Twenty-First Century Perspective	17
Determine Multiple Classes of Veterinary Antibiotics in Soil: Comparing Dispersive and Solid-Phase Extraction for Sample Cleanup	17
UPLC-MS/MS Method for the Determination of Hyperoside and Application to Pharmacokinetics Study in Rat After Different Administration Routes	15
Box–Behnken Design-Based Development and Validation of a Reverse-Phase HPLC Analytical Method for the Estimation of Paclitaxel in Cationic Liposomes	14
Use of Tetrabutylammonium Bromide and l-Arginine-Based Deep Eutectic Mixture in Combination with Beta-Cyclodextrin for Chiral Discrimination of Amino Acids in Capillary Electrophoresis	14
Hydrodynamic Chromatography: The Underutilized Size-Based Separation Technique	13
Asymmetric Flow Field-Flow Fractionation: Current Status, Possibilities, Analytical Limitations and Future Trends	12
Diffusion and Dispersion in Tubes in Supercritical Fluid Chromatography Using Sub-2 µm Packings	11
Recent Trends in Chiral Separations by 2D-HPLC	10
Multi-residue Methodologies for the Analysis of Non-polar Pesticides in Water and Sediment Matrices by GC–MS/MS	10
Validation and Comparison of Two Analytical Methods for Imatinib Therapeutic Drug Monitoring	10
A New Stationary Phase for Capillary Gas Chromatography: Calix[4]resorcinarene Functionalized with Imidazolium Cationic Units	10
Magnetic Solid-Phase Extraction of Lawsone Using Polyphenol-Coated Magnetic Nanoparticles: Synthesis, Characterization and examination	10
Chromatographic enantioseparation and adsorption thermodynamics of hydroxy acids and their derivatives on antibiotic-based chiral stationary phases as affected by eluent pH	9
Separation of Rare Earth Elements (REE) by Ion Interaction Chromatography (IIC) Using Diglycolic Acid (ODA) as a Complexing Agent	9
Performance Evaluation of Fixed Bed Column Packed with Ionic Liquid Impregnated Silica for Separation of Gadolinium and Neodymium from Aqueous Solutions	9
Liquid Chromatography at Critical Conditions in Polymer Analysis: A Perspective	8
Safer Solvent Blends for Food, Dye, and Environmental Analyses Using Reversed-Phase High Performance Liquid Chromatography	8
Comparison of HPLC–DAD and LC–MS Techniques for the Determination of Tetracyclines in Medicated Feeds Using One Extraction Protocol	8
Simultaneous Achiral/Chiral HPLC Separation of Ketoprofen, Ibuprofen, Flurbiprofen, and Naproxen	8
Solid-Phase Microextraction of Phthalate Esters from Aqueous Media by Functionalized Carbon Nanotubes (Graphene Oxide Nanoribbons) and Determination by GC–FID	8
Method Improvement for Analysis of Enrofloxacin and Ciprofloxacin in Chicken Meat: Application of In-Sample Addition of Trace Ethylenediaminetetraacetic Acid to Isotope Dilution Ultra-Performance Liqu	8
An Application of Quality by Design and Analytical Greenness Assessment Approach for the Development of Erlotinib Stability Indicating Method	8
A Closer Examination of 6-Aminoquinolyl-N-Hydroxysuccinimidyl Carbamate Amino Acid Derivatization in HPLC with Multiple Detection Modes	7
Development of a Novel HPLC Method for the Analysis of Impurities in Meropenem and Identification of Unknown Impurities by 2D LC-IT-TOF MS	7

Thermal Field-Flow Fractionation as a Powerful Tool for the Fractionation of Complex Synthetic Polymers: A Perspective	7
Capillary Electrophoresis-Indirect Laser-Induced Fluorescence Detection of Neomycin in Fish	7
Analysis of the Monosaccharide Composition of Water-Soluble Coriolus versicolor Polysaccharides by Ultra-Performance Liquid Chromatography/Photodiode Array Detector	7
Isolation of Four Major Compounds of γ-Oryzanol from Rice Bran Oil by Ionic Liquids Modified High-Speed Countercurrent Chromatography and Antimicrobial Activity and Neuroprotective Effect of Cycloarte	7
Unusual Difference in Enantioselectivity of Two Chiral Stationary Phases with Grafted Antibiotic Ristocetin A	7
A Novel UHPLC–MS/MS Method Development and Validation for Identification and Quantification of Genotoxic Impurity Bis (2-Chloroethyl) Amine in Aripiprazole Drug Substance	7
Determination of 11 Cannabinoids in Hemp Plant and Oils by Liquid Chromatography and Photodiode Array Detection	7
Limitations of Nanoparticles Size Characterization by Asymmetric Flow Field‑Fractionation Coupled with Online Dynamic Light Scattering	7
A Critical N-Nitrosamine Impurity of Anticoagulant Drug, Rivaroxaban: Synthesis, Characterization, Development of LC–MS/MS Method for Nanogram Level Quantification	6
Porous Membrane-Assisted Purge and Trap Sampling for Determination of VOCs in Gas Chromatography with Needle-Type Extraction Device	6
Improving Resolution of Isomeric Flavonoids and Their Glycosides Using Two-Dimensional Liquid Chromatography Coupled With High-Resolution Mass Spectrometry	6
Simultaneous Determination of 16 Illegally Added Drugs in Capsule Dietary Supplements Using a QuEChERS Method and HPLC–MS/MS	6
Gradient Polymer Elution Chromatography (GPEC): Under-Estimated Powerful Tool for Polymer Characterization—A Perspective	6
A New HPLC Method with UV Detection for the Determination of Carnosol in Human Plasma and Application to a Pharmacokinetic Study	6
Freestanding Fully Porous Polyimide Membrane for Thin Film Microextraction	6
Four Greenness Evaluations of Two Chromatographic Methods: Application to Fluphenazine HCl and Nortriptyline HCl Pharmaceutical Combination in Presence of Their Potential Impurities Perphenazine and D	6
A Facile Method for Detection and Speciation of Inorganic Selenium with Ion Chromatography	6
DoE Guided Development of an HPLC Method for Evaluation of Amoxicillin and Metronidazole Co-loaded Mucoadhesive GRDDS Formulation for H. pylori Eradication	5
Optimization of Detection of Native Amino Acids with Evaporative Light Scattering Detector in Chiral Supercritical Fluid Chromatography	5
Rapid Screening Method in the Identification of 17 Adulterants in Dietary Supplements	5
Evaluation of Poly(glycidyl methacrylate)-Coated Column for Enantioseparation with Azithromycin Lactobionate and Clindamycin Phosphate as Chiral Selectors in Capillary Electrophoresis	5
Temperature Gradient Interaction Chromatography: A Perspective	5
Rapid Profiling of Chemical Constituents in Qingfei Paidu Granules Using High Performance Liquid Chromatography Coupled with Q Exactive Mass Spectrometry	5
Practical Evaluation of Chitosan-Based Chiral Stationary Phase for Pharmaceutical Analysis by High-Performance Liquid Chromatography	5
FDA-Validated Ecofriendly Chromatographic Methods for Simultaneous Determination of Gemcitabine and Sorafenib: Applications to Pharmacokinetics	5
Entropic-Based Separation of Diastereomers: Size-Exclusion Chromatography with Online Viscometry and Refractometry Detection for Analysis of Blends of Mannose and Galactose Methyl-α-pyranosides at “Id	5
Miniaturized Analysis of Methylhexanamine in Urine by Gas Chromatography Applying In Situ Derivatization	5
Research Progress on Extraction and Analytical Methods for Saxitoxin and Its Congeners	5
A Forensic Approach to Evaluate the Effect of Different Matrices and Extraction Solvents for the Identification of Diesel Residue in Simulated Arson by GC–MS	5
Determination of the Glyphosate Content in Liquid and Dry Formulations by HPLC-UV: Pre-column Derivation with 9-Fluorenylmethyl Chloroformate (FMOC)	5
A Novel Method for the Determination of Fungicide Residues in Tobacco by Ultra-performance Liquid Chromatography–Tandem Mass Spectrometry Combined with Pass-Through Solid-Phase Extraction	5
Development and Validation of a Simple, Selective, and Accurate Reversed-Phase Liquid Chromatographic Method with Diode Array Detection (RP-HPLC/DAD) for the Simultaneous Analysis of 18 Free Amino Aci	5
Eco-friendly RP-HPLC and HPTLC Methods for Simultaneous Determination of Tamsulosin Hydrochloride and Deflazacort in the Presence of 21-Hydroxy Deflazacort and Testing the In-vitro Dissolution of the	5
Automated Column Screening and Computer-Assisted Modeling for Analysis of Complex Drug Samples in Pharmaceutical Laboratories	5
Variation with Temperature of Phase Ratio in Reversed Phase HPLC for a Methanol/Water Mobile Phase	4
Quantification of Cannabinoids in Cultivars of Cannabis sp. by Gas Chromatography–Mass Spectrometry	4
Development and Validation of RP-UPLC Method for 2,6-Dimethylaniline, Its Isomers, and Related Compounds Using Design of Experiments	4
A Metal Organic Framework + Ionic Liquid Pseudophase System as a Gas Chromatography Stationary Phase	4
Comparative Study of the UV Chemometrics, Ratio Spectra Derivative and HPLC-QbD Methods for the Estimation of Their Simultaneous Estimation in Combined Marketed Formulation	4
Selective Removal of Florfenicol from Fetal Bovine Serum by Restricted Access Media–Magnetic Molecularly Imprinted Polymers	4
Combination of Derivatization–HPLC–MS and Enzymatic Hydrolysis–Edman Degradation for Amino Acid Sequence and Configuration of Polymyxin B Components	4
Fabrication of Silica Microspheres for HPLC Packing with Narrow Particle Size Distribution and Different Pore Sizes by Hard Template Method for Protein Separation	4
Identification, Isolation, and Structural Characterization of Novel Forced Degradation Products of Darunavir Using Advanced Analytical Techniques Like UPLC–MS, Prep-HPLC, HRMS, NMR, and FT-IR Spectros	4
Enantioselective Separation of Antiretroviral Drug Combinations on Immobilized Polysaccharide CSPs Under Subcritical Conditions Using Supercritical Fluid Chromatography Apparatus	4
An HPLC Method for the Determination of Amines in Flotation Pulp Based on Derivatization	4
Identification, Validation and Standardization of Bioactive Molecules Using UPLC/MS-QToF, UHPLC and HPTLC in Divya-Denguenil-Vati: A Penta-Herbal Formulation for Dengue Fever	4
A Method to Assess Glyphosate, Aminomethylphosphonic Acid and Glufosinate in Chinese Herb Samples Using a Derivatization Method and LC–MS/MS	4
Impact of HILIC Amino-Based Column Equilibration Conditions on the Analysis of Chitooligosaccharides	4
Kinetic Degradation Study of Ipragliflozin Coupled with MS/MS Structural Elucidation	4
Ionizable Cyclofructan 6-Based Stationary Phases for Hydrophilic Interaction Liquid Chromatography Using Superficially Porous Particles	4

Selective Separation of Polar Unsaturated Organics Using a Water Stationary Phase in Gas Chromatography	4
A Novel Stability-Indicating Method for Determination of Related Substances of Montelukast Sodium in a Pharmaceutical Dosage Form Using RP-HPLC	4
Combined Application of Macroporous Resins and Preparative High-performance Liquid Chromatography for the Separation of Steroidal Saponins from Stems and Leaves of Paris polyphylla	4
Navigating the Future of Separation Science Education: A Perspective	4
Behavior characterization of lignosulfonate depolymerization products under acid-catalyzed conditions using gas chromatography–mass spectrometry	3
TLC–Densitometry and UHPLC Methods for Simultaneous Determination of Amprolium HCl, Ethopabate, and Sulfaquinoxaline-Na in Their New Combined Dosage Form	3
Ionic Compositions of Sequential Rainfall Samples as Source Signatures of Forest Fire Emissions	3
Evaluation of the Cefalexin Drug Degradation Profile in Pharmaceutical Capsule Forms Based on Forced Degradation Studies	3
Evolution of Stability-Indicating Method in the Quantification of Related Substances and Degradation Products of Elagolix Sodium: Quality by Design-Driven Approach Utilizing Ultra-high Performance Liq	3
Simultaneous Enantioseparation and Rapid Determination of Atenolol and Amlodipine Besylate by Capillary Electrochromatography	3
Application of Simultaneous Analytical Methods for Selective Androgen Receptor Modulator Adulterated in Dietary Supplements Advertised as Muscle Strengthening Using UHPLC-PDA and LC–ESI–MS/MS	3
Investigation to Identify the Root Cause of Out-of-Specification Results for Color of a Topical Pour-on Drug Product: A Case Study	3
Multiwalled Carbon Nanotubes-Encapsulated Gellan Gum Membrane for Micro-Solid Phase Extraction of Selected Polycyclic Aromatic Hydrocarbons in Environmental Water and Beverages	3
Comparative Study of Hyper-crosslinked Polymer-Solid Phase Microextraction and Stir Bar Fabric Phase Sorptive Extraction for Simultaneous Determination of Fluoroquinolones in Water	3
Multi-analyte HPLC–DAD Method for Concurrent Analysis of Six Antimicrobials and Three Proton Pump Inhibitors Frequently used in Management of Helicobacter pylori Infection: Application to Simulated In	3
Chiral Analysis of Amphetamine and Methamphetamine in Urine by Liquid Chromatography-Tandem Mass Spectrometry Applying Mosher Derivatization	3
Assay of Ivermectin Including Determination and Identification of Its Related Substances in Ivermectin Injectable Product by a Stability-Indicating RP-HPLC Method	3
Nontargeted UHPLC–MS for the Study of the Diversity of Flavonoid Glycosides in Different Fermented Teas	3
HPLC–MS/MS Analysis and Study on the Adsorption/Desorption Characteristics of Ginsenosides on Anion-Exchange Macroporous Resins	3
Optimization of an Alkaline Hydrolysis Preparation of Capilliposide-A from Lysimachia capillipes Hemsl. Using Response Surface Methodology Coupled with HPLC-ELSD Analysis	3
Capillary Electrophoresis Method for Simultaneous Quantification of Hypocholesterolemic Drugs in Binary Mixture Formulation: Fast, Green, and Cost-Effective Alternative to HPLC	3
Enantioseparation of 4C-Substituted Pyrrolidin-2-One Derivatives on Polysaccharide and Macrocyclic Glycopeptide Chiral Stationary Phases	3
Simultaneous Determination of Twenty Amino Acids in In Vitro Fertilization Medium by the HPLC–MS/MS Method	3
A Robust Procedure for Determination of Immunosuppressants Cyclosporine A and Tacrolimus in Blood Samples with Detection of LC–MS/MS	3
A Direct OnFlow Assay to Monitor the Activity of Purine Nucleoside Phosphorylase from Mycobacterium tuberculosis	3
LC-ESI-MS/MS Method for the Profiling of Glycerophospholipids and its Application to the Analysis of Tobacco Hairy Roots as Early Indicators of Phenol Pollution	3
Precursor Carboxy-silica for Functionalization With Interactive Ligands. II. Carbodiimide Assisted Preparation of Silica Bonded Stationary Phases with D-glucamine for Hydrophilic Interaction Liquid Ch	3
A Dual Functional-Group Derivatization Liquid Chromatography–Tandem Mass Spectrometry Method: Application for Quantification of Human Insulin	3
Study on Quality Control of Tenofovir Disoproxil Fumarate Enantiomers by High-Performance Liquid Chromatography–Mass Spectrometry	3
Development and Validation of a Modified QuEChERS Method for the Analysis of Bisphenols in Meats by UPLC-MS/MS	3
Accurate Quantitation of the Phenyl Group in Methylphenylsilicone Oils by GPC-UV	3
Development of an On-Line Two-dimensional Normal Phase Liquid Chromatography System for Analysis of Weakly Polar Samples	3
Synthesis of SiO2@MOF-199 as a Fiber Coating for Headspace Solid-Phase Microextraction of Phthalates in Plastic Bottled Milk	3
Hollow Fiber-Solid Phase Microextraction of Polycyclic Aromatic Hydrocarbons from Environment Water Followed by Flash Evaporation GC/MS	3
Determination of Daphnetin and its 8-O-Methylated Metabolite in Rat Plasma by UFLC-MS/MS: Application to a Pharmacokinetic Study	3
Development of an Efficient Solid-Phase Microextraction Monolithic Column for the Analysis of Estrogens in Human Urine and Serum Samples	3
Evaluation of Retention Range of Extractables Under Linear Gradient Conditions for Reversed-Phase Chromatographic Considerations and Requirements in Extractables Analytical Methods for Chemical Charac	3
Free Amino Acid Analysis in Honey Samples by Hydrophilic Interaction Liquid Chromatography with UV Detection Using Precolumn Derivatization with Dansyl Chloride	3
Determination of the Monoclonal Antibody Tocilizumab by a Validated Micellar Electrokinetic Chromatography Method	3
Determination of Hydrocarbons in n-Butane on Porous Layer Capillary Columns with Nonpolar Stationary Phase	3