主题词：Analytical Chemistry and Chromatography; Analytical chemistry methods development; Phytochemicals and Antioxidant Activities; Extraction and Separation Processes; Adsorption and biosorption for pollutant removal; Essential Oils and Antimicrobial Activity; Advanced Chemical Sensor Technologies; Chromatography in Natural Products; Pesticide Residue Analysis and Safety; Membrane Separation Technologies; Phytochemistry and Biological Activities; Mass Spectrometry Techniques and Applications; Natural product bioactivities and synthesis; Analytical Methods in Pharmaceuticals; Metal Extraction and Bioleaching; Minerals Flotation and Separation Techniques; Microfluidic and Capillary Electrophoresis Applications; Cyclone Separators and Fluid Dynamics; Metabolomics and Mass Spectrometry Studies; Pharmaceutical and Antibiotic Environmental Impacts; Advanced Photocatalysis Techniques; Radioactive element chemistry and processing; Recycling and Waste Management Techniques; Antibiotics Pharmacokinetics and Efficacy; Ionic liquids properties and applications