PMID- 30593992
OWN - NLM
STAT- MEDLINE
DCOM- 20190215
LR  - 20190215
IS  - 1090-2414 (Electronic)
IS  - 0147-6513 (Linking)
VI  - 170
DP  - 2019 Apr 15
TI  - C8-modified magnetic graphene oxide based solid-phase extraction coupled with 
      dispersive liquid-liquid microextraction for detection of trace phthalate acid 
      esters in water samples.
PG  - 789-795
LID - S0147-6513(18)31338-1 [pii]
LID - 10.1016/j.ecoenv.2018.12.051 [doi]
AB  - Phthalate acid esters (PAEs) are extensively applied in plastic and plastic 
      products, and have caused potential hazards on human and animal health. In this 
      study, a highly sensitive method was proposed for trace detection of selected 
      PAEs in water by gas chromatography-mass spectrometry, after solid-phase 
      extraction (SPE) using octyl (C8)-modified magnetic graphene oxide (MGO-C8) as 
      the adsorbent followed by dispersive liquid-liquid microextraction (DLLME). The 
      prepared MGO-C8 was characterized by Fourier transform infrared spectroscopy 
      (FT-IR), thermo gravimetric analysis (TGA) and vibrating sample magnetometry 
      (VSM). The recoveries of the PAEs using MGO-C8 as the adsorbent were found to be 
      significantly higher those obtained by MGO. The influences of solution pH, 
      adsorption and desorption time, eluent and extractant, and salt addition on the 
      extraction efficiency of PAEs were investigated. Under the optimized conditions, 
      limits of detection (LODs) of 0.5-1.0 ng L(-1) for PAEs, and related standard 
      deviations (RSDs) of 4.8-7.5% were obtained. The proposed method was utilized in 
      the detection of trace PAEs in real environmental water samples, with spiked 
      recoveries of 89.5-112.3%, 91.5-105.0% and 98.0-110.0% for DBP, DEHP and DNOP, 
      respectively.
CI  - Copyright (c) 2018 Elsevier Inc. All rights reserved.
FAU - Wang, Rui
AU  - Wang R
AD  - School of Environmental Science and Engineering, Guangdong University of 
      Technology, Guangzhou 510006, China.
FAU - Ma, Xiaoguo
AU  - Ma X
AD  - School of Environmental Science and Engineering, Guangdong University of 
      Technology, Guangzhou 510006, China. Electronic address: xgma@21cn.com.
FAU - Zhang, Xiaojun
AU  - Zhang X
AD  - School of Environmental Science and Engineering, Guangdong University of 
      Technology, Guangzhou 510006, China.
FAU - Li, Xin
AU  - Li X
AD  - School of Environmental Science and Engineering, Guangdong University of 
      Technology, Guangzhou 510006, China.
FAU - Li, Danping
AU  - Li D
AD  - School of Environmental Science and Engineering, Guangdong University of 
      Technology, Guangzhou 510006, China.
FAU - Dang, Yongfeng
AU  - Dang Y
AD  - Monitoring center of Pearl River Valley Aquatic Environment, Guangzhou 510611, 
      China.
LA  - eng
PT  - Journal Article
DEP - 20181226
PL  - Netherlands
TA  - Ecotoxicol Environ Saf
JT  - Ecotoxicology and environmental safety
JID - 7805381
RN  - 0 (Esters)
RN  - 0 (Phthalic Acids)
RN  - 0 (Water Pollutants, Chemical)
RN  - 0 (graphene oxide)
RN  - 059QF0KO0R (Water)
RN  - 6O7F7IX66E (phthalic acid)
RN  - 7782-42-5 (Graphite)
SB  - IM
MH  - Adsorption
MH  - Esters/*analysis
MH  - Gas Chromatography-Mass Spectrometry
MH  - Graphite/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Limit of Detection
MH  - Liquid Phase Microextraction/methods
MH  - Magnetics
MH  - Phthalic Acids/*analysis
MH  - Solid Phase Extraction/methods
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Water/*chemistry
MH  - Water Pollutants, Chemical/*analysis
OTO - NOTNLM
OT  - Dispersive liquid-liquid microextraction
OT  - Magnetic graphene oxide
OT  - Modification
OT  - Phthalate acid esters
OT  - Solid-phase extraction
OT  - Water
EDAT- 2018/12/30 06:00
MHDA- 2019/02/16 06:00
CRDT- 2018/12/30 06:00
PHST- 2018/10/01 00:00 [received]
PHST- 2018/12/01 00:00 [revised]
PHST- 2018/12/17 00:00 [accepted]
PHST- 2018/12/30 06:00 [pubmed]
PHST- 2019/02/16 06:00 [medline]
PHST- 2018/12/30 06:00 [entrez]
AID - S0147-6513(18)31338-1 [pii]
AID - 10.1016/j.ecoenv.2018.12.051 [doi]
PST - ppublish
SO  - Ecotoxicol Environ Saf. 2019 Apr 15;170:789-795. doi: 
      10.1016/j.ecoenv.2018.12.051. Epub 2018 Dec 26.