1. Liquid–Liquid Extraction of Organic Compounds into a Single Drop of the Extractant: Overview of Reviews

   • S. G. Dmitrienko
   • V. V. Apyari
   • M. V. Gorbunova

   REVIEWS 29 July 2021 Pages: 907 - 919

   

2. Green Emission Carbon Nanodots as Fluorescence Turn-on Probe for Detecting Picolinic Acid

   • Yu-Jie Ding
   • Xing Jin
   • Wei Wang

   ARTICLES 29 July 2021 Pages: 920 - 929

   

3. A Procedure for the Deposition of Macrocomponents in Determining Selenium and Tellurium in Metallurgical Materials by Inductively Coupled Plasma Atomic Emission Spectrometry

   • A. V. Maiorova
   • A. A. Belozerova
   • M. N. Bardina

   ARTICLES 29 July 2021 Pages: 930 - 938

   

4. Selectivity Control of the Separation of Anthocyanins: Replacing Acetonitrile for Methanol in the Mobile Phase

   • V. I. Deineka
   • E. Yu. Oleinits
   • L. A. Deineka

   ARTICLES 29 July 2021 Pages: 939 - 945

   

5. Using Hypercrosslinked Polystyrene for the Multicomponent Solid-Phase Extraction of Residues of 63 Veterinary Preparations in Their Determination in Chicken Meat by High-Performance Liquid Chromatography–Tandem Mass Spectrometry

   • A. O. Melekhin
   • V. V. Tolmacheva
   • A. I. Grudev

   ARTICLES 29 July 2021 Pages: 946 - 959

   

6. Development of a Method for the Determination of Polychlorinated Biphenyls in Microplastics Present in Marine Samples

   • Carro Nieves
   • Cobas Julio
   • Mouteira Ana

   ARTICLES 29 July 2021 Pages: 960 - 974

   

7. Assessment of a Possibility to Differentiate the Tumor Histological Type and Localization in Patients with Lung Cancer by the Composition of Exhaled Air

   • E. M. Gashimova
   • A. Z. Temerdashev
   • E. V. Dmitrieva

   ARTICLES 29 July 2021 Pages: 975 - 980

   

8. Sensitive Biosensor Based on Urease/In₂O₅Sn Nano-Coated Fluorinated SnO₂ for Urea Detection in Blood Serum

   • Mohaddeseh Mikani
   • Reza Rahmanian

   ARTICLES 29 July 2021 Pages: 981 - 992

   

9. Enhanced Non-Enzymatic Glucose Detection Using a Flower-Like NiCo₂O₄ Spheres Modified Electrode

   • Suqin Liu
   • Li Liu
   • Yuanyuan Liu

   ARTICLES 29 July 2021 Pages: 993 - 1001

   

10. Selective Electrooxidation of Lead from Binary Electrolytic Lead-platinum Precipitate

    • N. A. Kolpakova
    • A. V. Egoshina

    ARTICLES 29 July 2021 Pages: 1002 - 1006

    

11. A Chemometric (Geometric) Approach to Ranking Dry White Wines by the Results of Sensory Evaluation of Their Quality

    • A. A. Khalafyan
    • Z. A. Temerdashev
    • Yu. F. Yakuba

    ARTICLES 29 July 2021 Pages: 1007 - 1015

    

12. Chemometric Estimation of the Contributions of Metals and Volatile Compounds to the Sensory Properties of Some Natural Grape Wines

    • A. A. Khalafyan
    • Z. A. Temerdashev
    • Yu. F. Yakuba

    ARTICLES 29 July 2021 Pages: 1016 - 1027