主题词：Analytical chemistry methods development; Electrochemical sensors and biosensors; Advanced biosensing and bioanalysis techniques; Electrochemical Analysis and Applications; Analytical Chemistry and Sensors; Analytical Chemistry and Chromatography; Biosensors and Analytical Detection; Advanced Chemical Sensor Technologies; Advanced Nanomaterials in Catalysis; Molecular Sensors and Ion Detection; Carbon and Quantum Dots Applications; Spectroscopy and Chemometric Analyses; Pesticide Residue Analysis and Safety; Mass Spectrometry Techniques and Applications; Conducting polymers and applications; Gas Sensing Nanomaterials and Sensors; Analytical Methods in Pharmaceuticals; Cultural Heritage Materials Analysis; Nanocluster Synthesis and Applications; Luminescence and Fluorescent Materials; Heavy metals in environment; Microfluidic and Capillary Electrophoresis Applications; Water Quality Monitoring and Analysis; Metal-Organic Frameworks: Synthesis and Applications; Mercury impact and mitigation studies