Contents

Journal of Analytical Chemistry

Vol. 81, No. 4, 2026

ARTICLES

Spectral Curves and Light Absorption Indices as Indicators of Changes in the Genesis of Chromophoric Dissolved Organic Matter in Natural Water Bodies of the Russian North (A Case Study of Lake Imandra)

M. M. Bazova and S. S. Solovieva p. 531  abstract

Portable Chalcogenide Quantum Dot-Based Sensing System for Heavy Metal Cation Detection

V. S. Kulik, E. D. Gribova, S. A. Novikova, and N. N. Troshkina p. 540  abstract

Assessment of the Simultaneous Determination of Unsymmetrical Dimethylhydrazine and Three Transformation Products in Model Solutions by Gas Chromatography–Mass Spectrometry

E. V. Zagladkina, M. D. Shachneva, M. V. Beliakov, and E. I. Savelieva p. 553  abstract

Simultaneous Determination of Residues of the Most Important Veterinary Drugs in Environmental Samples by Chromatography-Mass-Spectrometry

D. Yu. Nekrasov, O. I. Lavrukhina, I. V. Batov, and A. V. Tret’yakov p. 562  abstract

Determination of Persistent Organic Pollutants in Surface Waters at Trace Concentration Levels: Challenges and Solutions

A. G. Gorshkov, T. A. Grigoryeva, and O. V. Kustova p. 571  abstract

Determination of Polychlorinated Biphenyls in Aquatic Organisms as Pollution Bioindicators at Ultratrace Concentration Levels

O. V. Kustova and A. G. Gorshkov p. 581  abstract

Volatile Organic Compounds Forming Unpleasant Odor in Wastewater from Fisheries

L. I. Sokolova, I. Yu. Khutornaya, A. B. Gatsanyuk, and E. V. Lipchenko p. 592  abstract

REVIEWS

Microfluidic Paper-Based Analytical Devices as Promising Platforms for Resource-Efficient Chemical Analysis: Methods of Fabrication and Signal Detection

A. A. Furletov, A. V. Yakimenko, V. V. Apyari, and S. G. Dmitrienko p. 596  abstract

Antibody-Based Monitoring of Nitroaromatic Explosive Contaminants in the Environment

Nevena Zelenović, Mladen Simonović, and Milica Popović p. 614  abstract

ARTICLES

Determination of Cinnamaldehyde in Cinnamon Essential Oil Based on Iodometry Using Bisulfite

Zhuo Chen and Nan Li p. 628  abstract

Sorbent Based on a Copolymer of Maleic Anhydride with Methacrylic Acid for the Preconcentration of Thorium(IV) and Uranium(VI) Ions

F. N. Bahmanova, S. Z. Hamidov, and F. M. Chyragov p. 634  abstract

High-Efficiency Alternating Current-Electrokinetic Micromixer: Design, Simulation, and the Role of Sidewall Obstacles

Elnaz Poorreza and Nader Ahmadzadeh Khosroshahi p. 640  abstract

Determination of Trace Quantities of Iron in Natural Substances with 3-(3'-Hydroxy-4'-Carboxyphenylazo)Pentadione-2,4 and Diantypyrylmethane and its Homologues

Khalil Nagiev, Ul’viya Gyullyarli, Arzu Abieva, and Famil’ Chyragov p. 651  abstract

Determination of Chlorine in Reference Materials of Marine Sediments of the OOPE and SDO Series by X-ray Fluorescence Spectrometry

I. V. Khokhlova, V. P. Kolotov, T. G. Kuz’mina, T. V. Romashova, and M. A. Troneva p. 657  abstract

Improving the Performance of an Adsorptive Membrane by Modifying Attapulgite and Its Application to the Detection of Chlorophenols

Yinuo Huang and Shuaibin Wu p. 664  abstract

Gas Chromatographic Determination of Acyclic and Cyclic Organic Carbonates in Aqueous Environment

M. G. Pervova, M. A. Samorukova, and V. I. Saloutin p. 672  abstract

Development of a Lateral Flow Immunoassay Strip Using Self-Paired Monoclonal Antibody for the Rapid Detection of Xanthomonas axonopodis pv. Citri

Siyuan Zhao, Yafang Wu, Yinglin Wang, Dezhi Li, Xudong Guo, Wenjun Zhao, and Qing Liu p. 681  abstract

Synergistic Integration of Reduced Graphene Oxide and Molecularly Imprinted Polymer on an Interdigital Electrode for Real-Time and Ultra-Trace Detection of Melamine

Samra Ashraf, Ghulam Mustafa, Khalid Pervaiz, and Mubushar Majeed p. 693  abstract