Organochlorine pesticides(OCPs)have received much attention due to their toxicity.Reliable methods to monitor their residues in the environment are needed.Here,magnetic polyamidoamine dendrimers were prepared by co-pr...Organochlorine pesticides(OCPs)have received much attention due to their toxicity.Reliable methods to monitor their residues in the environment are needed.Here,magnetic polyamidoamine dendrimers were prepared by co-precipitation,Michael addition,and amidation.The magnetic polyamidoamine dendrimers demonstrated good adsorption ability for OCPs—this feature was utilized to construct a sensitive tool for monitoring OCPs in water samples.The proposed method provided remarkable linearity from 0.1 to 500μg/L and satisfactory limits of detection from 0.012 to 0.029μg/L.The spiked recoveries of the four target analytes were 91.8%-103.5%with relative standard deviations less than 4.5%.The magnetic materials had good reusability.The results indicated that the resulting method was an efficient,easy,rapid,economical,and eco-friendly tool for monitoring OCPs in aqueous samples.展开更多
基金supported by the National Natural Science Foundation of China(No.21677177)Science Foundation of China University of Petroleum-Beijing(No.2462020XKJS04)。
文摘Organochlorine pesticides(OCPs)have received much attention due to their toxicity.Reliable methods to monitor their residues in the environment are needed.Here,magnetic polyamidoamine dendrimers were prepared by co-precipitation,Michael addition,and amidation.The magnetic polyamidoamine dendrimers demonstrated good adsorption ability for OCPs—this feature was utilized to construct a sensitive tool for monitoring OCPs in water samples.The proposed method provided remarkable linearity from 0.1 to 500μg/L and satisfactory limits of detection from 0.012 to 0.029μg/L.The spiked recoveries of the four target analytes were 91.8%-103.5%with relative standard deviations less than 4.5%.The magnetic materials had good reusability.The results indicated that the resulting method was an efficient,easy,rapid,economical,and eco-friendly tool for monitoring OCPs in aqueous samples.
