PMID- 34749185
OWN - NLM
STAT- MEDLINE
DCOM- 20211130
LR  - 20211130
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1659
DP  - 2021 Dec 6
TI  - Nitrogen-rich carbon nitride as solid-phase microextraction fiber coating for 
      high-efficient pretreatment of polychlorinated biphenyls from environmental 
      samples.
PG  - 462655
LID - S0021-9673(21)00777-9 [pii]
LID - 10.1016/j.chroma.2021.462655 [doi]
AB  - A two-dimensional nitrogen-rich carbon nitrogen (C(3)N(5)) material was prepared 
      via a facile high temperature thermal polymerization. For the first time, the 
      C(3)N(5) was used as fiber coating of solid-phase microextraction (SPME) to 
      extract and preconcentrate polychlorinated biphenyls (PCBs) before gas 
      chromatography (GC) analysis. The X-ray diffraction, N(2) adsorption-desorption, 
      Fourier transform-infrared spectroscopy, thermogravimetric analysis, and X-ray 
      photoelectron spectroscopy were performed to investigate structure, functional 
      groups, thermal stability, bonding type, element composition, and atomic ratio of 
      C(3)N(5). The two-dimensional planar stacking structure was further verified by 
      scanning electron microscopy and transmission electron microscopy. Five PCBs 
      including PCB-4, PCB-12, PCB-29, PCB-52 and PCB-101 were selected as targets to 
      evaluate performance of SPME fiber. Under the optimal conditions, the method 
      showed a good linear range from 0.01 to 1000 ng/mL with the correlation 
      coefficients (R(2)) higher than 0.9990. Enrichment factors of the method were 
      obtained from 2045 to 3080. The limits of detection (LODs, S/N = 3) and limits of 
      quantification (LOQs, S/N = 10) were calculated as 0.0031-0.0111 ng/mL and 
      0.01-0.05 ng/mL, respectively. The precisions of intra-day and inter-day were 
      obtained with the relative standard deviations (RSDs) at 1.5-6.6% and 0.8-6.9%, 
      respectively. The fiber-to-fiber producibility was achieved with RSDs ranged from 
      3.5% to 11.4%. The method was applied to detect PCBs in river water and soil 
      samples. The contents were calculated at 0.040-0.147 ng/mL in water and 
      0.520-3.218 ng/g in soil. The C(3)N(5) as SPME fiber coating material may be 
      applied to extract and preconcentrate other environmental pollutants which have 
      similar chemical structures with PCBs.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Zhang, Xiaowan
AU  - Zhang X
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China.
FAU - Han, Lizhen
AU  - Han L
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China.
FAU - Li, Mengyuan
AU  - Li M
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China.
FAU - Qin, Peige
AU  - Qin P
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China.
FAU - Li, Dan
AU  - Li D
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China.
FAU - Zhou, Qian
AU  - Zhou Q
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China.
FAU - Lu, Minghua
AU  - Lu M
AD  - Henan International Joint Laboratory of Medicinal Plants Utilization, School of 
      Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, 
      China. Electronic address: mhlu@henu.edu.cn.
FAU - Cai, Zongwei
AU  - Cai Z
AD  - State Key Laboratory of Environmental and Biological Analysis, Department of 
      Chemistry, Hong Kong Baptist University, Hong Kong SAR.
LA  - eng
PT  - Journal Article
DEP - 20211030
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Nitriles)
RN  - 534Q0F66RK (cyanogen)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Nitriles
MH  - Nitrogen
MH  - *Polychlorinated Biphenyls
MH  - *Solid Phase Microextraction
OTO - NOTNLM
OT  - Carbon nitride
OT  - Environment pollutants
OT  - Polychlorinated biphenyls
OT  - Preconcentration
OT  - Sample pretreatment
OT  - Solid-phase microextraction
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2021/11/09 06:00
MHDA- 2021/12/01 06:00
CRDT- 2021/11/08 20:25
PHST- 2021/05/24 00:00 [received]
PHST- 2021/10/21 00:00 [revised]
PHST- 2021/10/27 00:00 [accepted]
PHST- 2021/11/09 06:00 [pubmed]
PHST- 2021/12/01 06:00 [medline]
PHST- 2021/11/08 20:25 [entrez]
AID - S0021-9673(21)00777-9 [pii]
AID - 10.1016/j.chroma.2021.462655 [doi]
PST - ppublish
SO  - J Chromatogr A. 2021 Dec 6;1659:462655. doi: 10.1016/j.chroma.2021.462655. Epub 
      2021 Oct 30.