PMID- 23953713
OWN - NLM
STAT- MEDLINE
DCOM- 20140224
LR  - 20130830
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1308
DP  - 2013 Sep 20
TI  - Ampholine-functionalized hybrid organic-inorganic silica material as sorbent for 
      solid-phase extraction of acidic and basic compounds.
PG  - 63-72
LID - S0021-9673(13)01256-9 [pii]
LID - 10.1016/j.chroma.2013.08.025 [doi]
AB  - A novel sorbent for solid-phase extraction (SPE) was synthesized by chemical 
      immobilization of ampholine on hybrid organic-inorganic silica material. The 
      ampholine-functionalized hybrid organic-inorganic silica sorbent is consisted of 
      aliphatic amine groups, carboxyl groups and long carbon chains, allowing for 
      extraction of both acidic and basic compounds. The retention properties of the 
      developed sorbent were evaluated for 1-hydroxy-2-naphthoic acid (HNA), 
      1-naphthoic acid (NA), 3-hydroxybenzoic acid (HBA), benzoic acid (BA), sorbic 
      acid (SA), vanillic aldehyde (VA), butyl 4-hydroxybenzoate (BHB), propyl 
      4-hydroxybenzoate (PHB), ethyl 4-hydroxybenzoate (EHB), and methyl 
      4-hydroxybenzoate (MHB). The results show that such a sorbent has three types of 
      interaction, i.e., electrostatic interaction, hydrophobic interaction, and 
      hydrogen bonding, exhibiting high extraction efficiency towards the compounds 
      tested. The adsorption capacities of the analytes ranged from 0.61 to 
      6.54mugmg(-1). The reproducibility of the sorbent preparation was evaluated at 
      three spiking concentration levels, with relative standard deviations (RSDs) of 
      1.0-10.5%. The recoveries of ten acidic and basic compounds spiked in beverage 
      Coca-Cola((R)) sample ranged from 82.5% to 98.2% with RSDs less than 5.8%. Under 
      optimum conditions, the ampholine-functionalized hybrid organic-inorganic silica 
      sorbent rendered higher extraction efficiency for acidic compounds than that of 
      the commercially available ampholine-functionalized silica particles, and was 
      comparable to that of the commercial Oasis WAX and Oasis WCX.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Wang, Tingting
AU  - Wang T
AD  - College of Chemical Engineering, Ningbo University of Technology, Ningbo 315016, 
      China. shiming-49@163.com
FAU - Chen, Yihui
AU  - Chen Y
FAU - Ma, Junfeng
AU  - Ma J
FAU - Chen, Mingliang
AU  - Chen M
FAU - Nie, Chenggang
AU  - Nie C
FAU - Hu, Minjie
AU  - Hu M
FAU - Li, Ying
AU  - Li Y
FAU - Jia, Zhijian
AU  - Jia Z
FAU - Fang, Jianghua
AU  - Fang J
FAU - Gao, Haoqi
AU  - Gao H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130809
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Organic Chemicals)
RN  - 0 (Polyamines)
RN  - 0 (Polymers)
RN  - 37348-94-0 (Ampholine)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - Y4S76JWI15 (Methanol)
SB  - IM
MH  - Adsorption
MH  - Hydrogen-Ion Concentration
MH  - Methanol/chemistry
MH  - Organic Chemicals/chemistry/isolation & purification
MH  - Osmolar Concentration
MH  - Polyamines/chemistry
MH  - Polymers/*chemistry
MH  - Reproducibility of Results
MH  - Silicon Dioxide/*chemistry
MH  - Solid Phase Extraction/*instrumentation/*methods
OTO - NOTNLM
OT  - Acidic compounds
OT  - Ampholine
OT  - Basic compounds
OT  - Hybrid organic-inorganic silica material
OT  - Solid-phase extraction
EDAT- 2013/08/21 06:00
MHDA- 2014/02/25 06:00
CRDT- 2013/08/20 06:00
PHST- 2013/07/08 00:00 [received]
PHST- 2013/08/02 00:00 [revised]
PHST- 2013/08/05 00:00 [accepted]
PHST- 2013/08/20 06:00 [entrez]
PHST- 2013/08/21 06:00 [pubmed]
PHST- 2014/02/25 06:00 [medline]
AID - S0021-9673(13)01256-9 [pii]
AID - 10.1016/j.chroma.2013.08.025 [doi]
PST - ppublish
SO  - J Chromatogr A. 2013 Sep 20;1308:63-72. doi: 10.1016/j.chroma.2013.08.025. Epub 
      2013 Aug 9.