Molecularly imprinted polymer synthesis and selective solid phase extraction applications for the detection of ziram, a dithiocarbamate fungicide

Abstract

It is becoming more and more critical to identify and eliminate pesticide residues that are intended to be used in combating agriculture but pose a threat to all living things due to their unconscious use. In this study, a high-performance molecular imprinted material (MIP) was synthesized to remove ziram, a dithiocarbamate fungicide, from its liquid phase. After characterization studies of the printed polymer synthesized by the suspension polymerization process, the re-bonding ability and the suitability of the adsorption process to kinetic and isothermal models were compared with an non-imprinted reference polymer (NIP). Selectivity of MIP adsorbent prepared by imprinting method against template molecule ziram; their adsorption ability against different dithiocarbamate fungicides (maneb, ferbam, and propineb) was determined by testing. Some extraction parameters were optimized to evaluate the extraction performance of MIPs used as adsorbents in the solid-phase extraction column. It has been found that under optimized conditions, the developed MIP-SPE method provides high recovery for ziram. This method was developed; it was determined that MIP-SPE showed higher extraction efficiency against ziram than commercial C18-SPE and non-print polymer solid-phase extraction (NIP-SPE) processes. Thus, the MIP-SPE method has proven to be an environmentally friendly, sensitive, easy-to-work, time-saving, efficient sample pretreatment method that uses less solvent. These findings will provide a fundamentally technical for the removal of the trace hazardous pollutants.

Keywords

• Molecularly imprinted polymers
• Pollutants
• Solid-phase extraction
• Suspension polymerization
• Ziram