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Predicting the bioavailability of nitro polycyclic aromatic hydrocarbons in sediments: ZIF-8/h-BN solid-phase microextraction versus Tenax extraction

Authors :
Jijie Kong
Xiaoyu Cao
Wen Huang
Chao Li
Qiming Xian
Shaogui Yang
Shiyin Li
Cheng Sun
Huan He
Source :
Environmental pollution (Barking, Essex : 1987).
Publication Year :
2022

Abstract

The occurrence of nitrated polycyclic aromatic hydrocarbons (NPAHs) in sediments has been widely reported, but research on NPAH bioavailability is lacking. In this study, a self-made zeolite imidazolate framework-8/hexagonal boron nitride (ZIF-8/h-BN) solid-phase microextraction (SPME) fiber and commercial Tenax are compared as efficient tools to predict the bioavailability of NPAHs in sediments with bioassays using Cipangopaludina chinensis. During the process of SPME, the NPAH concentrations on the ZIF-8/h-BN fibers reached extraction equilibrium after 72 h. The fiber extraction of NPAHs in sediments was well-fitted by the pseudo first-order kinetic model with a rate constant of 2 × 10

Details

ISSN :
18736424
Database :
OpenAIRE
Journal :
Environmental pollution (Barking, Essex : 1987)
Accession number :
edsair.doi.dedup.....318c7f8713beb5be44c5fa5d4b837e5c