Contents

Journal of Analytical Chemistry

Vol. 81, No. 6, 2026

REVIEWS

Magnetic Solid-Phase Extraction and Preconcentration of Anionic Azo Dyes: A Review

K. O. Andreeva, V. I. Savrasova, S. S. Aleksenko, Yu. A. Tyunina, S. A. Shalabai, and S. N. Shtykov p. 891  abstract

ARTICLES

Effect of Physicochemical Characteristics of Sorbents on the Quality of the Separation of Hydrocarbon Groups by Liquid Adsorption Chromatography

D. I. Panyukova, E. Yu. Savonina, and T. A. Maryutina p. 918  abstract

Use of Sorbents Based on Silica and Poly(Styrene–Divinylbenzene) for the Determination of Synthetic Sweeteners in Beverages by HPLC

A. F. Borodina, D. S. Polyakova, N. Yu. Chikurova, A. V. Gorbovskaia, M. A. Statkus, G. I. Tsisin, O. A. Shpigun, and A. V. Chernobrovkina p. 931  abstract

Determination of Polychlorophenols in River Bottom Sediments Using Dynamic Online Preconcentration

A. S. Gubin, P. T. Sukhanov, and A. A. Kushnir p. 942  abstract

Cascade of Centrifugal Mini-Extractors as a Device for Preparative Liquid–Liquid Chromatography

A. E. Kostanyan, D. V. Lobovich, Yu. A. Zakhodyaeva, E. M. Ivannikova, and A. A. Voshkin p. 956  abstract

Sorbents Made of Cross-Linked Collagen and Styrene–Divinylbenzene Copolymers for Oil Spill Response

P. S. Zagoskin, G. S. Minakov, Yu. N. Romanova, and M. Yu. Koroleva p. 967  abstract

REVIEWS

Gold Nanoparticle—Fluorescent Dye Conjugates for Bioanalyte Detection: a Review

Anudevi Sumathi Devadass and Shoba Narayan p. 977  abstract

ARTICLES

Trace Quantification of Flavonoids in Fruit and Vegetable Juices via Stir Bar Sorptive Extraction Using Carbon Nanotubes Modified by Grafted Poly(Ethylene Glycol)

Nadiya Ekbatani Amlashi, Shayan Dadgarnejad, Abbas Maleki, and Mohammad Reza Hadjmohammadi p. 998  abstract

Liquid Micellar-Saturated Phases of Surfactants as Test Agents for the Determination of Phenols

E. I. Tsyguleva and S. Yu. Doronin p. 1007  abstract

Fluorimetric Sensing of Proteins Using a Europium(III)-2-Thenoyltrifluoroacetone-Silver Nanoparticle-Protein System

Md. Kamruzzaman, Md. Hanif Munshi, and Md. Lalon Mia p. 1017  abstract

Application of Glow Discharge Atomic Emission Spectrometry to Layer-by-Layer Analysis of Zinc-Coated Steels

M. Yu. Lepilina, E. V. Yakubenko, T. N. Ermolaeva, and V. B. Baranovskaya p. 1025  abstract

Performance Comparison of Conventional and On-Chip Electromembrane Extraction Techniques for the Quantification of Antidementia Drugs in Biological Samples Using High-Performance Liquid Chromatography

Nadiya Ekbatani Amlashi, Yadollah Yamini, Shayan Dadgarnejad, and Mohammad Reza Hadjmohammadi p. 1036  abstract

Smartphone Application-Based Rapid Antioxidant Evaluation of Musa paradisiaca Peel Extract with Gas Chromatography-Mass Spectrometry Chemical Profiling

Si Eon Lee and Moon-Moo Kim p. 1049  abstract

Mass Spectra of By-Products of Phenolphthalein Anilide Synthesis

N. D. Kagramanov, A. N. Rodionov, S. N. Salazkin, and V. V. Shaposhnikova p. 1058  abstract

Determination of Deuterium Content of Deuterium-Enriched Water by Thermal Conversion/Elemental Analysis-Isotope Ratio Mass Spectrometry

Shouhui Dai, Hui Yang, Qingxia Liu, Menyao Li, and Fazuo Wang p. 1066  abstract

Label-Free Impedimetric Aptasensor for the Efficient Detection of Escherichia coli O157:H7 in Diverse Food Matrices: Application to Milk

Rasoul Shemshadi, Issa Mousazadeh Moghaddampour, and Mohadeseh Izadi p. 1073  abstract