PMID- 30340691
OWN - NLM
STAT- MEDLINE
DCOM- 20181116
LR  - 20221207
IS  - 1873-4324 (Electronic)
IS  - 0003-2670 (Linking)
VI  - 1041
DP  - 2018 Dec 24
TI  - Controllable synthesis of magnetic nanoporous carbon with tunable porosity for 
      the efficient cleanup of vegetable samples.
PG  - 58-67
LID - S0003-2670(18)31006-7 [pii]
LID - 10.1016/j.aca.2018.08.040 [doi]
AB  - Highly graphitic nanoporous carbon (NPC) was obtained from an agricultural 
      waste-citrus peel at optimum condition. Then, a low-cost and pore size-controlled 
      magnetic graphitic nanoporous carbon (MNPC) with ultrahigh specific surface area 
      (1064 m(2) g(-1)) was successfully fabricated by coprecipitation of Fe(3)O(4) 
      particles onto NPC. The prepared MNPC was characterized by Brunauer-Emmett-Teller 
      (BET), Raman spectrum, scanning electron microscope (SEM) and Fourier transform 
      infrared spectrometry (FT-IR). BET results showed a significant increase in the 
      micropores volume and specific surface area of MNPCs following the increase of 
      carbonization temperature, which implied that highly efficient carbonization made 
      NPC an excellent active phase for MNPC. Besides, the adsorption mechanism was 
      investigated and turned out that pi-pi interactions between interfering substances 
      and MNPC were considered to be the major driving force for the adsorption 
      process. The experimental parameters affecting the cleanup efficiency was 
      optimized through Response surface methodology (RSM) in detail. Under the optimal 
      cleanup condition, the MNPC was applied for determination of 16 insecticides in 
      vegetables coupled with gas chromatography-mass spectrometry (GC-MS), a 
      satisfactory performance was obtained. Good linearity was observed in the 
      investigated concentration range of 1-100 mug kg(-1) with correlation coefficients 
      (r(2)) between 0.9963 and 0.9999. The limits of detection (LODs) were in the 
      range of 0.03-0.33 mug kg(-1). The recoveries ranged from 81.9 to 112.3% with 
      relative standard deviations (RSDs) less than 10.9%. To summary up, the MNPC 
      could potentially be used as a super adsorbent to efficiently remove pigments 
      from vegetables, so that the proposed method was an efficient cleanup and 
      enrichment procedure.
CI  - Copyright (c) 2018 Elsevier B.V. All rights reserved.
FAU - Zhou, Yuantao
AU  - Zhou Y
AD  - College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China.
FAU - Cao, Shurui
AU  - Cao S
AD  - The Inspection Technical Center of Chongqing Entry-Exit Inspection & Quarantine 
      Bureau, Chongqing, 400020, China.
FAU - Xi, Cunxian
AU  - Xi C
AD  - The Inspection Technical Center of Chongqing Entry-Exit Inspection & Quarantine 
      Bureau, Chongqing, 400020, China.
FAU - Lai, Guoyin
AU  - Lai G
AD  - The Inspection Technical Center of Xiamen Entry-Exit Inspection & Quarantine 
      Bureau, Xiamen, 361026, China.
FAU - Li, Xianliang
AU  - Li X
AD  - The Inspection Technical Center of Chongqing Entry-Exit Inspection & Quarantine 
      Bureau, Chongqing, 400020, China.
FAU - Zhang, Lei
AU  - Zhang L
AD  - The Inspection Technical Center of Chongqing Entry-Exit Inspection & Quarantine 
      Bureau, Chongqing, 400020, China.
FAU - Wang, Guomin
AU  - Wang G
AD  - The Inspection Technical Center of Chongqing Entry-Exit Inspection & Quarantine 
      Bureau, Chongqing, 400020, China.
FAU - Chen, Zhiqiong
AU  - Chen Z
AD  - College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China. 
      Electronic address: chenzq@cqmu.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20180825
PL  - Netherlands
TA  - Anal Chim Acta
JT  - Analytica chimica acta
JID - 0370534
RN  - 0 (Insecticides)
RN  - 7440-44-0 (Carbon)
RN  - 7782-42-5 (Graphite)
SB  - IM
MH  - Adsorption
MH  - Carbon/*chemistry
MH  - *Gas Chromatography-Mass Spectrometry
MH  - Graphite/chemistry
MH  - Insecticides/*analysis/chemistry
MH  - Limit of Detection
MH  - Solanum lycopersicum/chemistry
MH  - Magnetics
MH  - *Nanopores
MH  - Porosity
MH  - Vegetables/*chemistry
OTO - NOTNLM
OT  - Cleanup
OT  - Graphitic
OT  - Insecticides
OT  - Magnetic nanoporous carbon
OT  - Magnetic separation
EDAT- 2018/10/21 06:00
MHDA- 2018/11/18 06:00
CRDT- 2018/10/21 06:00
PHST- 2018/06/07 00:00 [received]
PHST- 2018/08/18 00:00 [revised]
PHST- 2018/08/21 00:00 [accepted]
PHST- 2018/10/21 06:00 [entrez]
PHST- 2018/10/21 06:00 [pubmed]
PHST- 2018/11/18 06:00 [medline]
AID - S0003-2670(18)31006-7 [pii]
AID - 10.1016/j.aca.2018.08.040 [doi]
PST - ppublish
SO  - Anal Chim Acta. 2018 Dec 24;1041:58-67. doi: 10.1016/j.aca.2018.08.040. Epub 2018 
      Aug 25.