Deep eutectic solvent functionalized graphene oxide composite adsorbent for miniaturized pipette-tip solid-phase extraction of toluene and xylene exposure biomarkers in urine prior to their determination with HPLC-UV

2020 ◽  
Vol 187 (7) ◽  
Author(s):  
Yanan Yuan ◽  
Yehong Han ◽  
Chunliu Yang ◽  
Dandan Han ◽  
Hongyuan Yan
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