Analytical / Environmental Chemistry Research
Research activities in this area include sample preparation comprising of sample clean-up, pre-treatment and preconcentration strategies to improve detection limits for applications in trace analysis; fabrication and surface modification of synthetic resins using molecular and ionic -imprinted polymers; supported and hollow fiber liquid membranes for water purification by removing metal ions, inorganics and organics substances; development of passive in situ and integrative samplers.
Anatytical activities include water analysis for persistent organic pollutants, cosmetics ingredients for quality check; drug residues in edible products; pharmacology of bioactive compounds; primary and secondary metabolites from plant sources; method development for optimization of analyte detection; organic substances e.g. cyanobacterial toxins including hepatotoxins, lipopolysaccharide (LPS) endotoxins, neurotoxins and saxitoxins (paralytic shellfish toxins, PST). The analytical techniques include chromatographic and mass spectrometric techniques (GC, LC, GC-MS and LC-MS). Analysis of inorganic contaminants mainly heavy metals and other oxyanions; chemical speciation studies of heavy metals in drinking water and wastewater from industrial effluents, techniques for speciation analysis include electrochemical, spectrometric & chromatographic methods; IC-ICP-OES and LC-ICP-MS.