OOIR: Observatory of International Research

Papers

(The TQCC of Applied Spectroscopy is 5. 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 2021-12-01 to 2025-12-01.)

Article	Citations
State of Formic Acid Dissolved in Tar According to Infrared Spectroscopy	53
Advertising and Front Matter	52
Monolithic Miniature Glass Spectrometer	45
In Vivo Near-Infrared Noninvasive Glucose Measurement and Detection in Humans	37
Recognition of the Presence of Bone Fractures Through Physicochemical Changes in Diagenetic Bone	37
Advertising and Front Matter	35
Co-Localized Infrared–Raman Spectroscopy: An Innovative Approach for the Quantitative In Situ Analysis of Gas Mixtures at High Pressures	29
Features of Wax Appearance Temperature Determination of Waxy Crude Oil Using Attenuated Total Reflection Fourier Transform Infrared Spectroscopy Under Ambient and High Pressure	29
10 kHz Shifted-Excitation Raman Difference Spectroscopy with Charge-Shifting Charge-Coupled Device Read-Out for Effective Mitigation of Dynamic Interfering Backgrounds	29
Quantitative Detection of the Raw Ore Turquoise Based on Laser-Induced Breakdown Spectroscopy Technology	25
Local Adaptive Fusion Regression (LAFR) for Local Linear Multivariate Calibration: Application to Large Datasets	22
Symmetric Non-Monochromatic Light as Reference in Fourier Transform Spectrometers	21
Quantification of Elevated Hydrogen Cyanide (HCN) Concentration Typical in a Residential Fire Environment Using Mid-IR Tunable Diode Laser	21
Mid-Infrared Dispersion Spectroscopy as a Tool for Monitoring Time-Resolved Chemical Reactions on the Examples of Enzyme Kinetics and Mutarotation of Sugars	20
Temperature and Thermal Diffusivity Diagnostics in Laminar Methane Flames Using Infrared Four-Wave Mixing Techniques	19
Investigation of Thin Silicone Films on Opaque Solid Surfaces Using Coherent Raman Scattering Imaging	17
Expert System for Fourier Transform Infrared Spectra Recognition Based on a Convolutional Neural Network With Multiclass Classification	16
Raman Analysis of Orientation and Crystallinity in High T_g, Low Crystallinity Electrospun Fibers	16
Determination of the pK_a Value of Protonated Mono and Polyamine in Solution Using Fourier Transform Infrared Titration	16
Corrigendum	15
Optical Characterization of Bitumen: Inspecting the Quantum Size Effect in the Nanostructured Phase	14
Raman Spectroscopy Applied to Early Detection of Clostridium Infection in Milk	14
Novel Raman Spectroscopy Method for Solutions in Uniform, High-Strength Electric Field	14
Comparison of Convolutional and Conventional Artificial Neural Networks for Laser-Induced Breakdown Spectroscopy Quantitative Analysis	13
Bessel Beam Coherent Anti-Stokes Raman Scattering Spectroscopy for Turbulent Flow Diagnosis	13

EXPRESS: Application of Laser-Induced Breakdown Spectroscopy for Measuring Chromium Concentration in Chromium-Doped Zinc Selenide (Cr:ZnSe) Laser Materials	13
Bleach Cleaning of Commercially Available Gold Nanopillar Arrays for Surface-Enhanced Raman Spectroscopy (SERS)	13
Feasibility of In-Line Raman Spectroscopy for Quality Assessment in Food Industry: How Fast Can We Go?	13
Fourier Transform Infrared Spectroscopy and Vibrational Circular Dichroism Assisted Elucidation of the Solution-State Supramolecular Speciation in Racemic and Enantiopure Ketoprofen	13
Enzyme Dynamics in Attoliter-Volume Electrochemical Zero-Mode Waveguides with On-Demand In-Situ Hydrogen Peroxide Delivery and Consumption	12
Widefield Super-Resolution Infrared Spectroscopy and Imaging of Autofluorescent Biological Materials and Photosynthetic Microorganisms Using Fluorescence Detected Photothermal Infrared (FL-PTIR)	12
Wheat Flour Discrimination Using Two-Dimensional Correlation Spectroscopy and Deep Learning	12
Monitoring Noble Gases (Xe and Kr) and Aerosols (Cs and Rb) in a Molten Salt Reactor Surrogate Off-Gas Stream Using Laser-Induced Breakdown Spectroscopy (LIBS)	12
Characterizing Variability in Non-Invasive Hydration Monitoring Using Raman Spectroscopy	12
Simultaneous Application of Raman and Laser-Induced Breakdown Spectroscopy in the Gas Phase with a Single Laser and Detector	11
Advertising and Front Matter	11
Spectroscopic Studies of BA Class Liquid Crystals in the 6–15 THz Range Using the Fourier Transform Infrared (FT-IR) Method	11
Spectroscopic Study of Micro-/Nano-Hydroxyapatite Polymer Composites Modified with Carbon Nanofibers	10
Mid-Infrared Generated Laser-Induced Grating Signals in Methane-Containing Gas Mixtures as Indicators of Composition, Pressure, and Temperature	10
Infrared Spectroscopy-Determined Bone Compositional Changes Associated with Anti-Resorptive Treatment of the oim/oim Mouse Model of Osteogenesis Imperfecta	10
Characterization of Animal Protein-Based Binders in Ancient Chinese Wall Paintings Using Atomic Force Microscopy and Fourier Transform Infrared Spectroscopy	10
Advertising and Front Matter	10
Spectroscopic Investigation of Catalyst Inks and Thin Films Toward the Development of Ionomer Quality Control	10
EXPRESS: Complex-Valued Chemometrics in Spectroscopy: Partial Least Squares Regression	10
Neurodevelopmental Process Monitoring of Cytosine Arabinoside-Exposed Neurons Using Raman Spectroscopy	10
Characterization and Identification of Diverse Fruit Rot Fungal Species Using Microscopic and Spectroscopic Approaches	10
Integrating Laser-Induced Breakdown Spectroscopy and Ensemble Learning as Minimally Invasive Optical Screening for Diabetes	10
Advertising and Front Matter	9
Principal Component Analysis and Near-Infrared Spectroscopy as Noninvasive Blood Glucose Assay Methods	9
EXPRESS: Characterization of Additives in Polyvinyl Chloride Using Infrared Spectroscopy and Evolved Gas Analysis–Mass Spectrometry Coupled with Two-Dimensional Correlation Spectroscopy	9
Advertising and Front Matter	9
Fluorescence Resonance Energy Transfer (FRET) as a Spectroscopic Ruler for the Investigation of Protein Induced Lipid Membrane Curvature: Bacteriorhodopsin and Bacteriorhodopsin Analogs in Model Lipid	9
Deadliest Animals with the Thinnest Wings: Near-Infrared Properties of Tropical Mosquitoes	9
Brillouin Spectroscopy of Binary Phospholipid–Cholesterol Bilayers	9
Triplet Network for One-Shot Raman Spectrum Recognition	9
Congruence Concept for Comparison of Spectra	9
Determination of Provenance Soil Type Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) Analyses of Pinus ponderosa Ash	9
Porphyrin Aluminum Metal–Organic Framework in Liquid Water, its Interaction with the Oxidized Organosulfur Compound Diethyl Sulfoxide, and its Sorption from Aqueous Solution	9
Phosphorus Modulated Peroxidase-Like Activity of Carbon Dots for Colorimetric Detection of Acid Phosphatase	8
Spatial Resolution of Micro-Raman Spectroscopy for Particulate Lithium Iron Phosphate (LiFePO ₄ )	8
Feasibility of a Fiber-Dispersive Raman Spectrometer for Biomarker Detection	8
Non-Invasive Assessment of the Non-Melanoma Skin Tumor Oxygenation Status by Hyperspectral Imaging: A Pilot Study	8
Terahertz Spectroscopy Study of the Stereoisomers of Threonine	8
Temporal Profile of Nonresonant Sum-Frequency Signal from Single-Crystal Silicon Depends on Crystal Orientation	8
Innovative Substrate-Integrated Hollow Waveguide Coupled Attenuated Total Reflection Sensors for Quantum Cascade Laser Based Infrared Spectroscopy in Harsh Environments	8
Laser-Induced Plasmas of Plutonium Dioxide in a Double-Walled Cell	8
Fatty Acid Determination in Human Milk Using Attenuated Total Reflection Infrared Spectroscopy and Solvent-Free Lipid Separation	8
Analysis of Lithium Aging Using Machine Learning-Enhanced Spectroscopy Techniques	8
Advertising and Front Matter	8
Analysis of Small Area Metal Surfaces Using Infrared External Reflection Spectroscopy	7
Coherent Anti-Stokes Raman Scattering Measurements of Time and Length Scales of Temperature Fluctuations in a Turbulent Flame	7
Determination of Aminophylline in Human Serum Using Hydrogel Microspheres for Coupled Surface-Enhanced Raman Spectroscopy (SERS) and Solid-Phase Extraction	7
A Calibration-Free Optical Emission Spectroscopic Method to Determine the Composition of a Spark Discharge Plasma Used for AuAg Binary Nanoparticle Synthesis	7
Non-Destructive Prediction of the Mixed Mineral Pigment Content of Ancient Chinese Wall Paintings Based on Multiple Spectroscopic Techniques	7
Tabular Two-Dimensional Correlation Analysis for Multifaceted Characterization Data	7

Dynamic Multivariate Outlier Detection Algorithm Using Ultraviolet Visible Spectroscopy for Monitoring Surface Water Contamination With Hydrological Fluctuation in Real-Time	7
Two-Dimensional Correlation Spectroscopy (2D-COS) Analysis of Evolving Hyperspectral Images	7
Determination of H₂ Densities Over a Wide Range of Temperatures and Pressures Based on the Spectroscopic Characterization of Raman Vibrational Bands	7
Dependence on the Lens-to-Target Distance and with the Laser Energy at Constant Irradiance of the Laser-Induced Breakdown Spectroscopy Signal	7
Integrated Optics Waveguides and Mesoporous Oxides for the Monitoring of Volatile Organic Compound Traces in the Mid-Infrared	7
EXPRESS: Combining Polarization Analysis and Isothermal Crystallization Behavior Elucidated by Two-Dimensional Correlation Spectroscopy for Understanding the Crystallization Properties of Poly[(R)-3-H	7
Nitrate Classification Based on Optical Absorbance Data Using Machine Learning Algorithms for a Hydroponics System	7
Magnetic-Field-Confined Laser Induced Kohl Plasma: Elemental Analysis and Plasma Characterization	7
Detection of Bioactive Metabolites in Escherichia Coli Cultures Using Surface-Enhanced Raman Spectroscopy	7
Accurate Determination of Trace Cadmium in Soil Samples with Graphite Furnace Atomic Absorption Spectrometry Using Metal–Organic Frameworks as Matrix Modifiers	7
First-Order Individual Gas Sensors as Next Generation Reliable Analytical Instruments	7
Coomassie Brilliant Blue G for Smart Colorimetric Determination of the Ionic Surfactants in Triton X-100 Solutions	7
Landmark Publications in Analytical Atomic Spectrometry: Fundamentals and Instrumentation Development	7
Exploring the Clinical Utility of Raman Spectroscopy for Point-of-Care Cardiovascular Disease Biomarker Detection	7
Understanding Advanced Attenuated Total Reflection Correction: The Low Absorbance Assumption	6
Raman Spectroscopy as an Effective Tool for Assessment of Structural Quality and Polymorphism of Gallium Oxide (Ga₂O₃) Thin Films	6
Laser Ablation Plasmas and Spectroscopy for Nuclear Applications	6
Optical Tomography of Polymeric Microsphere Layers Using Confocal Raman Microscopy	6
Circular Dichroism Spectral Similarity Plots to Extend Validation and Correction to All Measured Wavelengths	6
Near Real-Time Measurement of Airborne Carbon Nanotubes with Metals Using Raman–Spark Emission Spectroscopy	6
Disease-Associated Multimolecular Signature in the Urine of Patients with Lyme Disease Detected Using Raman Spectroscopy and Chemometrics	6
Two-Dimensional Correlation Spectroscopy (2D-COS) Tracking of the Formation of Selected Transition Metal Compounds Cu(II) and Cd(II) with Cinchonine and Their Impact on Model Components of Erythrocyte	6
Studies of Protein Binding to Biomimetic Membranes Using a Group of Uniform Materials Based on Organic Salts Derived From 8-Anilino-1-naphthalenesulfonic Acid	6
Sub-Nanosecond Digital Signal Processing of Photomultiplier Tube Response Enabling Multiphoton Counting in Raman Spectroscopy	6
Advertising and Front Matter	6
Laser-Induced Fluorescence (LIF) Spectroscopy of Trapped Molecular Ions in the Gas Phase	6
Continuous Monitoring of Sulfur Dioxide Removal Using K-Band Molecular Rotational Resonance Spectroscopy	6
A Spectroscopic Method for Distinguishing Two Novel Sandwich-Type Tungsten Oxide Cluster Compounds	6
Quasi-Non-Destructive Estimation of Concrete Compression Strength Using Laser-Induced Breakdown Spectroscopy and Multivariate Analysis	6
Ultraviolet Resonance Raman Spectra of Serum Albumins	6
Ante- and Post-Mortem Fracture Identification Protocol Based on Low- and High-Level Fusion Using Fourier Transform Infrared Spectroscopy and Raman Spectroscopy Association	6
Acute Leukemia Diagnosis Through AI-Enhanced Attenuated Total Reflection Fourier Transform Infrared Spectroscopy of Peripheral Blood Smears	6
Model Fitting and Analysis of Dielectric Properties in Alcohol–Fuel Blends Using Terahertz and Gigahertz Spectroscopies	6
Crude Oil Density Prediction Improved by Multiblock Analysis of Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Fourier Transform Infrared, and Near-Infrared Spectroscopy Data	6
Standoff Interaction Assessment Using High-Energy Laser–Induced Oxidation Spectroscopy	5
Isotopic Signatures of Lithium Carbonate and Lithium Hydroxide Monohydrate Measured Using Raman Spectroscopy	5
Compact Radio Frequency Discharge-Pumped Slab CO Laser System with a Zinc Germanium Phosphide (ZnGeP₂) Sum-Frequency Generator for Remote Sensing of the Atmosphere	5
Plasma Parameters During Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) in the Presence of Nanoparticle–Protein Conjugates	5
Evaluation of Breast Cancer Gene Type 1 (BRCA1) Protein Levels in Cancer Tissue Using Surface-Enhanced Raman Spectroscopy	5
In-Line Chemical Composition Monitoring for the Injection Molding Process of Biodegradable Polymer Blends Using Simultaneous Measurement of Near-Infrared Diffuse Reflectance and Transmission Spectra	5
Deep-Learning-Enabled High-Fidelity Absorbance Spectra from Distorted Dual-Comb Absorption Spectroscopy for Gas Quantification Analysis	5
Growth Kinetics Monitoring of Gram-Negative Pathogenic Microbes Using Raman Spectroscopy	5
Active Surface-Enhanced Raman Spectroscopy (SERS): A Novel Concept for Enhancing Signal Contrast in Complex Matrices Using External Perturbation	5
Photoacoustic Spectroscopy Gas Detection Technology Research Progress	5
Feature Selection and Spectral Indices for Identifying Maize Stress Types	5
Influence of Different Measuring Backgrounds on the Classification of Multilayer Polyolefin Films Using a Near-Infrared Handheld Spectrometer	5
Standoff Deep Ultraviolet Raman Spectrometer for Trace Detection	5
Two-Dimensional (2D) Hybrid Method: Expanding 2D Correlation Spectroscopy (2D-COS) for Time Series Analysis	5
Impact of Pulsing a Radio Frequency Glow Discharge Lamp on Emission Yields and Analytical Figures of Merit in Glow Discharge Optical Emission Spectroscopy	5
Theoretical Calculation and Simulation of Peak Distortion of Absorption Spectra of Complex Mixtures	5
Leveraging Hydrogen Bond-Induced Peak Shifting to Determine Alcohol Concentration in Suspect Gel Hand Sanitizers Using Portable Infrared and Handheld Raman Spectrometers	5
A Sensitive Fluorescence Sensor for Tetracycline Determination Based on Adenine Thymine-Rich Single-Stranded DNA-Templated Copper Nanoclusters	5
Reaction Analysis and Process Optimization with Online Infrared Data Based on Kinetic Modeling and Partial Least Squares Quantitation	5
Identification of Relevant Spectral Ranges in Laser-Induced Breakdown Spectroscopy Imaging Using the Fourier Space	5
Noncontact Fiber Optic Probe for Clinical Applications of Raman Spectroscopy	5
In Situ Raman Spectroscopy Monitoring of Material Changes During Proton Irradiation	5
Sensitive Detection of an Erbium Isotope in an Atomic Beam Using Cavity Ring-Down Spectroscopy	5
Molecular Emissions from Stretched Excitation Pulse in Nanosecond Phase-Selective Laser-Induced Breakdown Spectroscopy of TiO₂ Nanoaerosols	5
Filter Fluorometer Calibration Without the Fluorometer	5
Time-Dependent Intensity Ratio-Based Approach for Estimating the Temperature of Laser Produced Plasma	5
Attenuated Total Reflection Infrared and Far-Infrared, and Raman Spectroscopy Studies of Minerals, Rocks, and Biogenic Minerals	5
Characteristic Spectral Features of Terra Preta (TP) in the 5–15 Terahertz Range	5
Demixing and Analysis of Complex Biological Raman Hyperspectra Based on Peak Fitting, Amplitude Trend Clustering, and Spectrum Reconstruction	5
Advertising and Front Matter	5
Application of Infrared and Near-Infrared Microspectroscopy to Microplastic Human Exposure Measurements	5