Contents

Journal of Analytical Chemistry

Vol. 80, No. 13, 2025

Non-Additivity of the Contributions of Individual Sections of the Modulating Sequence to the Multiplexed Signal in Hadamard Transform Ion Mobility Spectrometry

G. V. Lapshov, A. Y. Adamov, and A. A. Sysoev p. 2149  abstract

Classification of Tea Using Atmospheric Pressure Laser Plasma Ionization Mass Spectrometry

S. I. Timakova, K. Yu. Kravets, A. A. Grechnikov, and A. V. Pento p. 2159  abstract

Rapid Determination of Lignans in Plant Raw Materials by Liquid Chromatography–Tandem Mass Spectrometry

D. I. Falev, I. S. Voronov, A. A. Onuchina, A. V. Faleva, D. S. Kosyakov, and N. V. Ulyanovskii p. 2166  abstract

Possibilities and Limitations of Gas Chromatography–Mass Spectrometric Identification of Products of Free Radical Chlorination of Cyclic Ethers at the Lack of Reference Information

I. G. Zenkevich, E. V. Eliseenkov, and A. I. Ukolov p. 2175  abstract

Search and Determination of Polycyclic Aromatic Hydrocarbons in Atmospheric Aerosols of the Arctic Urban Agglomeration by Gas Chromatography–High-Resolution Mass Spectrometry

I. S. Shavrina, D. S. Kosyakov, and I. I. Pikovskoi p. 2191  abstract

Positive and Negative Ion Mass Spectra and Stability of Some Nitro-Rich Aromatic Compounds

R. V. Khatymov, A. V. Dudkin, A. G. Terentyev, L. Z. Khatymova, M. D. Krykin, and A. V. Dyachkov p. 2200  abstract

Mass Spectrometric Characteristics of Vitamins K Using Atmospheric Pressure Chemical Ionization

M. F. Vokuev, S. D. Makarkin, A. V. Frolova, O. I. Klychnikov, L. N. Nefedova, and I. A. Rodin p. 2210  abstract

Detection and Identification of Immunoglobulin A Nephropathy Biomarkers in Urine by Liquid Chromatography–High-Resolution Mass Spectrometry

M. D. Shachneva, G. V. Karakashev, A. Yu. Gorbunov, and E. I. Savelieva p. 2215  abstract

Determination of Steroidal Sapogenins by Comprehensive 2D Liquid Chromatography–Tandem Mass Spectrometry

D. I. Falev, I. S. Voronov, A. V. Faleva, D. S. Kosyakov, and N. V. Ulyanovskii p. 2221  abstract