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A method for extracting soil microplastics through circulation of sodium bromide solutions
The Science of The Total Environment2019
184 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 45
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Yang Song,
Shibo Lu,
Defu He,
Huahong Shi
Mengting Liu,
Mengting Liu,
Shibo Lu,
Defu He,
Huahong Shi
Jiani Hu,
Huahong Shi
Jiani Hu,
Defu He,
Jiani Hu,
Rongliang Qiu,
Yang Song,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Yang Song,
Moritz Bigalke,
Moritz Bigalke,
Defu He,
Moritz Bigalke,
Yang Song,
Moritz Bigalke,
Huahong Shi
Jiani Hu,
Huahong Shi
Rongliang Qiu,
Shibo Lu,
Defu He,
Yang Song,
Rongliang Qiu,
Shibo Lu,
Shibo Lu,
Shibo Lu,
Moritz Bigalke,
Mengting Liu,
Moritz Bigalke,
Yang Song,
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Defu He,
Yang Song,
Huahong Shi
Huahong Shi
Defu He,
Defu He,
Huahong Shi
Moritz Bigalke,
Huahong Shi
Yang Song,
Yang Song,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Yang Song,
Shibo Lu,
Shibo Lu,
Shibo Lu,
Shibo Lu,
Shibo Lu,
Shibo Lu,
Yang Song,
Shibo Lu,
Huahong Shi
Shibo Lu,
Yang Song,
Rongliang Qiu,
Rongliang Qiu,
Jiani Hu,
Huahong Shi
Jiani Hu,
Moritz Bigalke,
Jiani Hu,
Defu He,
Defu He,
Huahong Shi
Huahong Shi
Rongliang Qiu,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Jiani Hu,
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Jiani Hu,
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Mengting Liu,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Huahong Shi
Huahong Shi
Shibo Lu,
Mengting Liu,
Shibo Lu,
Rongliang Qiu,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Rongliang Qiu,
Yang Song,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Moritz Bigalke,
Yang Song,
Yang Song,
Yang Song,
Moritz Bigalke,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Defu He,
Defu He,
Defu He,
Jiani Hu,
Jiani Hu,
Jiani Hu,
Rongliang Qiu,
Rongliang Qiu,
Mengting Liu,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Xinyu Li,
Shibo Lu,
Defu He,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Defu He,
Huahong Shi
Defu He,
Defu He,
Huahong Shi
Huahong Shi
Rongliang Qiu,
Shibo Lu,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Moritz Bigalke,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Huahong Shi
Huahong Shi
Rongliang Qiu,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Moritz Bigalke,
Moritz Bigalke,
Rongliang Qiu,
Rongliang Qiu,
Rongliang Qiu,
Huahong Shi
Rongliang Qiu,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Rongliang Qiu,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Defu He,
Defu He,
Huahong Shi
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Rongliang Qiu,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Defu He,
Huahong Shi
Huahong Shi
Rongliang Qiu,
Defu He,
Huahong Shi
Defu He,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Rongliang Qiu,
Huahong Shi
Huahong Shi
Huahong Shi
Huahong Shi
Defu He,
Huahong Shi
Defu He,
Defu He,
Huahong Shi
Huahong Shi
Moritz Bigalke,
Huahong Shi
Summary
A sodium bromide solution circulation method was developed and validated for extracting microplastics from soil samples, offering a practical and efficient alternative to other density separation techniques. The method's high recovery efficiency and relatively low cost make it suitable for large-scale soil monitoring programs studying microplastic contamination in agricultural and natural soils.
Microplastics (MP) have been recently found in soil environments. These MP might have adverse effects at high concentrations and thus efficient extraction and analysis of MP from soil is needed. Here we propose a new method of NaBr solution circulation for extracting soil MP. A device for the circular extraction of soil MP was developed. This device included a separation, vacuum filtration, and solution recovery system. It was then utilized to test separation efficiency of soil MP with three economic and environmentally friendly extraction reagents: NaCl, CaCl and NaBr solutions. The separation was tested with ten different types of polymers, three different size classes and three different shapes of MP. Extraction with NaBr showed the highest recovery rates ranging from 85% to 100%. After extraction the samples were treated with HO and analyzed by micro-Fourier transform infrared spectroscopy. The developed method was assessed for its potential influence on MP and no significant changes in the integrity of multiple MP were found. Finally, the established method was used to analyze MP in four types of soil: farmland, yellow-brown, paddy and floodplain soil from the suburb of Shanghai. Results showed that the mean abundance of MP was 136.6-256.7 item kg. Various MP including PP (40%), PE (35.5%), Acrylic (15.6%), PET (6.7%) and PA (2.2%) were found. With this paper, we provide an alternative method through NaBr solution circulation for the extraction of soil MP.