OOIR: Observatory of International Research

Papers

(The H4-Index of Analytical Methods is 31. 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 2022-08-01 to 2026-08-01.)

Article	Citations
Effect of hydrotreating on the pyrolysis oil composition: GC-MS studies	94
Back cover	85
Critical analysis of advanced nanosensors for dengue detection	80
A TiO ₂ /Ti ₃ C ₂ MXene photoelectrochemical ch	76
Front cover	73
Single-cell mass cytometry reveals distinct immune signatures in colorectal cancer	70
Development of an iron-metal organic Framework-based dispersive solid phase extraction coupled with flame atomic absorption spectrophotometry for the accurate and sensitive determination of copper in	59
Optimizing the extraction of ursolic acid from loquat leaf using ¹ H-qNMR	53
An angled-shape tip-based strategy for highly sensitive proteomic profiling of a low number of cells	48
Amplified electrochemical detection of sulfadiazine based on Cu-BTC-encapsulated FeNi dual-atom catalysts with improved catalytic efficiency	47
A novel 3D-CB/HEC–CH@Cu hybrid electrode for sensitive and rapid ammonia nitrogen detection in environmental water	44
Bulk-lysis protocols as a sensitive method for investigation of circulating CK19 cells in the peripheral blood of patients with breast cancer by flow cytometry	43
A visual ratiometric fluorescence sensor for glutathione response based on MnO ₂ nanowires as an oxidant, quencher and recognition unit	42
Optimization of a modified Captiva EMR-lipid method based on micro-matrix solid-phase dispersion coupled with gas chromatography-mass spectrometry for the determination of nine bisphenols in mussel sa	42
Alternative digestion strategy for Ti, Zr and Hf oxides: eliminating hydrofluoric acid	40
Improved estimates of expanded measurement uncertainty	38
Front cover	37
Diagnostic performance of thioflavin T in one-step RT-PCR for detection of a viral RNA	37
Comprehensive HPLC fingerprint analysis based on a two-step extraction method for quality evaluation of Perilla frutescens (L.) Britt	37
Electrostatic assemblies of molecularly imprinted polymers on the surface of electrospun nanofiber membranes for the point-of-care detection of thiodiglycol, a sulfur mustard poisoning metabolic marke	36
Membraneless, self-powered immunosensing of a cardiac biomarker by exploiting a PEC platform based on CaBi ₂ Ta ₂	36
Retraction: NiFe ₂ O ₄ nanoparticles decorated with MWCNTs as a selective and sensitive electroche	36
Back cover	34
Development of a novel MSRE-dPCR assay for non-invasive prenatal testing of trisomy 21	34
An effective method for detecting nitrous oxide using alkaline washing and GC-MS	34

A highly sensitive competitive aptasensor for AFB ₁ detection based on an exonuclease-assisted target recycling amplification strategy	33
Near-infrared carbon dots enable ultra-sensitive fluorometric detection of belzutifan: a novel approach for real-time therapeutic drug monitoring in cancer treatment	33
Design and application of potentiometric sensors for the determination of mefenamic and phenylanthranilic acids	33
Smartphone-based colorimetric analysis of pH strips using machine learning	32
Recent advances in the CRISPR/Cas system-based visual detection method	32
A fluorescence sensor array for biothiol detection and disease identification based on a CoOOH nanoflake triggered dual-color fluorescence system	31