1. Mathematical Modelling in Analytical Chromatography: Problems and Solutions

   • A. M. Dolgonosov
   • A. G. Prudkovskii
   • A. A. Dolgonosov

   REVIEWS Open access 14 November 2021 Pages: 1233 - 1244

   

2. Heparin Gold Nanoparticles as a Colorimetric Probe for Cardiac Troponin I Detection

   • Vidya Raj
   • Saji Alex

   ARTICLES 14 November 2021 Pages: 1245 - 1251

   

3. Catalyst-free Chemisorption-based Spectrophotometric Technique for Analysis of Toxic Acidic Vapors of Solid Propellant Exhaust

   • Selvakumar Subramanian
   • B. Munirathinam

   ARTICLES 14 November 2021 Pages: 1252 - 1261

   

4. Determination of Solifenacin Succinate in Pure and Pharmaceutical Dosage forms by Spectrophotometry

   • Roopa Kothathi Papanna
   • Basavaiah Kanakapura
   • Veena Keregodu Puttegowda

   ARTICLES 14 November 2021 Pages: 1262 - 1270

   

5. Determination of the Composition of Glasses Produced at the Lava Factories by X-Ray Fluorescence Spectrometry and Optical Spectroscopy

   • A. A. Drozdov
   • M. N. Andreev
   • P. V. Evdokimov

   ARTICLES 14 November 2021 Pages: 1271 - 1281

   

6. Ion Mobility Spectrometry of Imidazole and Possibilities of Its Determination

   • D. A. Aleksandrova
   • T. B. Melamed
   • V. V. Belyakov

   ARTICLES 14 November 2021 Pages: 1282 - 1289

   

7. Study of Sorption Properties of Acrylamide-Based Polymer Hydrogels by Spectral Methods of Analysis

   • Ya. I. Simakina
   • T. G. Kuz’mina
   • V. G. Senin

   ARTICLES 14 November 2021 Pages: 1290 - 1295

   

8. Green Sample Preparation Based on Directly Suspended Droplet Microextraction using Deep Eutectic Solvent for Ultra-Trace Quantification of Nitroaromatic Explosives by High Performance Liquid Chromatography

   • Sahar Moazzen
   • Ali Reza Zarei
   • Kobra Mardi

   ARTICLES 14 November 2021 Pages: 1296 - 1304

   

9. Determination of Ketosteroids in Human Urine Using Dispersive Liquid-Liquid Microextraction and Ultra High-Performance Liquid Chromatography-High Resolution Mass Spectrometry

   • E. V. Dmitrieva
   • A. Z. Temerdashev
   • A. K. Osipova

   ARTICLES Open access 14 November 2021 Pages: 1305 - 1311

   

10. A New Derivatizing Agent for Determining Nitrofuran Metabolites in Chicken Eggs by High-Performance Liquid Chromatography–Tandem Mass Spectrometry

    • A. O. Melekhin
    • V. V. Tolmacheva
    • Yu. A. Zolotov

    ARTICLES 14 November 2021 Pages: 1312 - 1320

    

11. A Chiral Stationary Phase Based on Guanine Conglomerates Obtained under Viedma Ripening Conditions

    • N. I. Sairanova
    • Yu. Yu. Gainullina

    ARTICLES 14 November 2021 Pages: 1321 - 1326

    

12. Development and Validation of LC-ESI-MS/MS Method for the Determination of Alfuzosin in Human Plasma

    • Moustapha E. Moustapha
    • Rania M. El Gamal
    • Mehnaz Kamal

    ARTICLES 14 November 2021 Pages: 1327 - 1335

    

13. Determination of Indicator Congeners of Polychlorinated Biphenyls in Water at Ultratrace Levels by Gas Chromatography–Tandem Mass Spectrometry

    • O. V. Kustova
    • A. S. Stepanov
    • A. G. Gorshkov

    ARTICLES 14 November 2021 Pages: 1336 - 1344

    

14. A Sensor for the Recognition and Determination of Tryptophan Enantiomers Based on Carbon-Paste Electrode Modified by Enantiomorphic Crystals of Bromotriphenylmethane

    • Yu. A. Yarkaeva
    • E. N. Islamuratova
    • V. N. Maistrenko

    ARTICLES 14 November 2021 Pages: 1345 - 1354

    

15. Erratum to: Enhancement Effect of Cetyltrimethylammonium Bromide on Electrochemical Determination of Chlorophenols using a Carbon Paste Electrode

    • Arsim Maloku
    • Liridon Berisha
    • Kurt Kalcher

    Erratum 14 November 2021 Pages: 1355 - 1355