1. Calculation and Comparative Analysis of IR Spectra of a Number of Brassinolides with Different Side-Chain Structures

   • V. M. Andrianov
   • M. V. Korolevich

   OriginalPaper 12 September 2021 Pages: 697 - 709

2. Phosphorescence Peculiarities and Structure of Glassy Benzophenone

   • G. V. Klishevich
   • N. D. Curmei
   • A. G. Tereshchenko

   OriginalPaper 12 September 2021 Pages: 710 - 715

3. Fluorescence Mechanism of Biphenylene

   • V. A. Tolkachev

   OriginalPaper 12 September 2021 Pages: 716 - 718

4. Terahertz Spectroscopy of Aqueous Solutions of Acetic Acid

   • D. T. Bozorova
   • Sh. P. Gofurov
   • O. B. Ismailova

   OriginalPaper 12 September 2021 Pages: 719 - 722

5. Buckwheat Identification by Combined UV-VIS-NIR Spectroscopy and Multivariate Analysis

   • Yu. T. Platov
   • D. A. Metlenkin
   • V. A. Marin

   OriginalPaper 12 September 2021 Pages: 723 - 730

6. Triethoxysilane Express Analysis Method

   • V. M. Rotshteyn
   • Kh. B. Ashurov
   • R. Kh. Ashurov

   OriginalPaper 13 September 2021 Pages: 731 - 736

7. The Dynamics of Br Formation from the Primary and Secondary C–Br Bond Dissociation of Oxalyl Bromide near 265 and 234 nm

   • D. Paul
   • H. K. Kim
   • T. K. Kim

   OriginalPaper 12 September 2021 Pages: 737 - 743

8. Spectroscopic Method for Studying the Morphology of Suspensions

   • A. I. Markova
   • S. D. Khizhnyak
   • P. M. Pakhomov

   OriginalPaper 12 September 2021 Pages: 744 - 748

9. Estimation of the Polarity of Stationary Phases for Gas Chromatography Based on Spectral Parameters

   • V. I. Beketov
   • M. V. Belkov
   • P. P. Pershukevich

   OriginalPaper 13 September 2021 Pages: 749 - 754

10. In situ Raman Spectroscopic Study of the Kinetics of the Chemical Dissolution of Ytterbium Oxide in YbCl₃–KCl Melt

    • I. D. Zakiryanova

    OriginalPaper 13 September 2021 Pages: 755 - 760

11. Effect of Neodymium Laser Pulses of Nanosecond Duration on Brown Coal

    • B. P. Aduev
    • D. R. Nurmukhametov
    • Z. R. Ismagilov

    OriginalPaper 13 September 2021 Pages: 761 - 764

12. A Nonclinical Spectroscopic Approach for Diagnosing Covid-19: A Concise Perspective

    • J. M. Mir
    • M. W. Khan
    • R. C. Maurya

    OriginalPaper 12 September 2021 Pages: 765 - 771

13. Prediction of Caffeine in Tablets Containing Acetylsalicylic Acid, Dipyrone, and Paracetamol by Near-Infrared Spectroscopy, Raman Scattering, and Partial Least Squares Regression

    • L. L. M. Guio
    • L. O. Coutinho
    • J. S. Ribeiro

    OriginalPaper 12 September 2021 Pages: 772 - 780

14. Chemical Transformations of Flax Shive Lignin by the Action of Polysaccharide Fermentation Products

    • S. V. Aleeva
    • O. V. Lepilova
    • S. A. Koksharov

    OriginalPaper 12 September 2021 Pages: 781 - 788

15. Scattering Indicatrix of Aqueous Hemoglobin Solutions

    • A. I. Isaeva
    • E. Maikov
    • G. P. Petrova

    OriginalPaper 12 September 2021 Pages: 789 - 793

16. Assessing PM_2.5, Aerosol, and Aerosol Optical Depth Concentrations in Hefei Using Modis, Calipso, and Ground-Based Lidar

    • Zh. Fang
    • H. Yang
    • D. Liu

    OriginalPaper 13 September 2021 Pages: 794 - 801

17. Lidar Probing of Raman Scattering by Hydrofluoride Molecules in an Atmospheric Boundary Layer

    • V. E. Privalov
    • V. G. Shemanin

    OriginalPaper 13 September 2021 Pages: 802 - 806

18. Transformation of Phenol, Resorcinol, Pyrocatechol, and Hydroquinone in Water Under Exposure to Low Doses of UV Radiation

    • L. P. Nekrasova
    • P. P. Kochetkov

    OriginalPaper 17 September 2021 Pages: 807 - 815

19. Broad-Band Polarizing Light Beam Splitter Based on a Multilayer Thin-Film Coating

    • V. E. Agabekov
    • N. S. Kazak
    • A. G. Mashchenko

    OriginalPaper 15 September 2021 Pages: 816 - 824

20. Luminescence Investigations of the Effect of the Structure of the Molecules on their Stability during Interaction with Electrons in the Gas Phase

    • A. V. Kukhta
    • O. L. Neyra
    • S. M. Kazakov

    OriginalPaper 15 September 2021 Pages: 825 - 830

21. Temperature Dependence of the Refractive Indices of Doped K₂SO₄ Crystals

    • V. Yo. Stadnyk
    • P. A. Shchepanskyi
    • Z. A. Kogut

    OriginalPaper 17 September 2021 Pages: 831 - 837

22. Effect of Heavy Metals on Dynamic and Static Quenching of the Fluorescence of the Host-Guest Inclusion Complex Methyl-β-Cyclodextrin by 2,9-Dimethyl-4,7-Diphenyl-1,10-Phenanthroline in Aqueous Media

    • Umit Ay

    OriginalPaper 15 September 2021 Pages: 838 - 846

23. Thermal and Spectroscopic Studies of the Thermal-Oxidation Stabilities of Lubricants

    • P. Wang
    • Y. Wang
    • H. Wang

    OriginalPaper 15 September 2021 Pages: 847 - 854

24. Characterization of Solvent Effects on C=O Stretching Vibrations of Ketoprofen by Empirical Solvent Parameters

    • S. Sagdinc
    • N. Tekin

    OriginalPaper 15 September 2021 Pages: 855 - 862

25. Raman and X-Ray Absorption Spectroscopy Investigations of the Structure and Ru–Mn Valence States of Li₂Mn_0.9Ru_0.1O₃

    • B. Singh
    • P. Singh
    • M. Gupta

    OriginalPaper 17 September 2021 Pages: 863 - 869

26. Microstructure and Red Luminescence of ZnO Nanoparticles/Nanofibers Synthesized by Electrospinning Followed by Thermal Annealing

    • P. V. Huan
    • N. D. Thong
    • V.-H. Pham

    OriginalPaper 15 September 2021 Pages: 870 - 874

27. Energy Levels, Lifetimes, and Radiative Data of Xe XXIV

    • X. M. Ren
    • L. H. Hao
    • J. J. Liu

    OriginalPaper 15 September 2021 Pages: 875 - 881

28. Validated UV Spectrophotometric Methods for the Determination of Anticancer Drug Erlotinib Hydrochloride in Bulk and Tablet Formulations

    • R. D. Rathod
    • L. D. Rathod
    • H. M. Patel

    OriginalPaper 15 September 2021 Pages: 882 - 886

29. Discrimination of Manufacturers Origin of Oxytetracycline Using Terahertz Time-Domain Spectroscopy with Chemometric Methods

    • J. Guo
    • H. Deng
    • L. P. Shang

    OriginalPaper 15 September 2021 Pages: 887 - 893

30. Comparative Study of Different Spectrophotometric Methods for Simultaneous Determination of Tramadol and Paracetamol in Pharmaceutical Formulations

    • D. S. Nakhla
    • L. A. Hussein
    • I. A. Abdallah

    OriginalPaper 14 September 2021 Pages: 894 - 900

31. Car-Borne Measurements of Atmospheric NO₂ by a Compact Broadband Cavity Enhanced Absorption Spectrometer

    • L. Ling
    • Y. Huang
    • P. Xie

    OriginalPaper 14 September 2021 Pages: 901 - 909