Rapid preparation of molecularly imprinted polymers by custom‐made microwave heating for analysis of atrazine in water
2018
Kueseng, Pamornrat | Nisoa, Mudtorlep | Sontimuang, Chonlatid
The rapid preparation of an atrazine‐imprinted polymer in a cost‐effective custom‐made microwave reactor was demonstrated. The polymerization reaction was accelerated by microwave heating, and the preparation time was greatly shortened (to 1 h). The resulting polymer was successfully applied as solid‐phase extraction adsorbent for the selective extraction and preconcentration of atrazine in environmental water samples. The binding capacity of the polymer was 1.11 mg/g polymer. The polymer provided selectivity with higher recovery of atrazine than of other interfering related contaminants. The proposed method had good limits of detection and quantitation at 0.20 and 0.60 ng/mL, respectively. The recoveries were from 83 to 89% at two spiking levels, with relative standard deviations less than 5%. This method was successfully applied to determine the atrazine levels in environmental water samples.
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