1. Magnetic Nanoparticles Modified by Ionic Liquids in Environmental Analysis

   • O. B. Mokhodoeva
   • V. V. Maksimova
   • V. M. Shkinev

   REVIEWS 11 June 2021 Pages: 675 - 684

   

2. Surface-Modified Magnetic Nanoscale Materials: Preparation and Study of Their Structure, Composition, and Properties

   • D. V. Pryazhnikov
   • I. V. Kubrakova

   REVIEWS 11 June 2021 Pages: 685 - 706

   

3. Sorption Preconcentration of Volatile Organic Compounds in Air Analysis with a Change in the Configuration of the Sorption Layer in a Transition from Sorption to Thermal Desorption

   • O. V. Rodinkov
   • A. S. Bugaichenko
   • V. N. Postnov

   ARTICLES 11 June 2021 Pages: 707 - 713

   

4. Dispersive Liquid–Liquid Microextraction Followed by Solidified Floating Organic Drop for Hexavalent Chromium Determination: a Method for Occupational and Environmental Exposure Monitoring for Heavy Metals

   • Yasaman Pourbakhshi
   • Mahmoud Heidari
   • Elahe Bozorgzadeh

   ARTICLES 11 June 2021 Pages: 714 - 720

   

5. Spectrophotometric Determination of Hg²⁺ Ions Using Sols of Silver Nanoparticles Modified with Cysteamine

   • A. Yu. Olenin
   • A. S. Korotkov

   ARTICLES 11 June 2021 Pages: 721 - 727

   

6. Interactions in the Ti(IV)–2,2',3,4-Tetrahydroxy-3'-Nitro-5'-Sulfoazobenzene–Cationic Surfactant System

   • A. J. Ragimova
   • V. I. Mardanova
   • F. M. Chyragov

   ARTICLES 11 June 2021 Pages: 728 - 732

   

7. Use of Total Fluorescence Spectroscopy for the Highly Sensitive Simultaneous Determination of Fluoroquinolones in Rabbit Plasma

   • José Antonio Murillo Pulgarín
   • Aurelia Alañón Molina
   • Narjisse Boras

   ARTICLES 11 June 2021 Pages: 733 - 741

   

8. Simultaneous Quantification of Paclitaxel and Vinorelbine Encapsulated in Theranostic Nanosized Liposomes

   • Merve Karpuz
   • Aysegul Dogan
   • A. Yekta Ozer

   ARTICLES 11 June 2021 Pages: 742 - 748

   

9. Homochiral Metal–Organic Framework [Ni(S-mal)(bpy)]_n Used for the Separation of Racemic Compounds by High Performance Liquid Chromatography

   • Nayan Xu
   • Baoyan Yuan
   • Liming Yuan

   ARTICLES 11 June 2021 Pages: 749 - 754

   

10. Two Fibers Packed in Capillary Column for Gas Chromatographic Separation

    • Wenxi Qiu
    • Lixin Ling
    • Huiyun Zhong

    ARTICLES 11 June 2021 Pages: 755 - 760

    

11. Application of Statistical Data Analysis Methods to Test the Degradation of Urine Samples for Doping Control Purposes

    • I. I. Podolskiy
    • E. S. Mochalova
    • E. M. Gashimova

    ARTICLES 11 June 2021 Pages: 761 - 771

    

12. Electrochemical Sensors Based on Copper–Cadmium Bimetallic Porphyrin Coordination Polymers with Various Cu/Cd Ratios

    • Chunyan Wang
    • Dan Ding
    • Bo Zhou

    ARTICLES 11 June 2021 Pages: 772 - 778

    

13. Detection and Assessment of Natural Bitumen Sources in Ancient Mummy Resins

    • E. B. Yatsishina
    • V. M. Pozhidaev
    • E. I. Panarina

    ARTICLES 11 June 2021 Pages: 779 - 784