PMID- 25280874
OWN - NLM
STAT- MEDLINE
DCOM- 20150518
LR  - 20190107
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1367
DP  - 2014 Nov 7
TI  - Coated capillaries with highly charged polyelectrolytes and carbon nanotubes 
      co-aggregated with sodium dodecyl sulphate for the analysis of sulfonylureas by 
      capillary electrophoresis.
PG  - 161-6
LID - S0021-9673(14)01481-2 [pii]
LID - 10.1016/j.chroma.2014.09.047 [doi]
AB  - Sulfonylureas (SUs) are one of the most widely used herbicides to control weeds 
      in crops. Herein, capillary electrophoresis (CE) was used to determine four 
      sulfonylureas in natural waters, namely chlorsulfuron (CS), iodosulfuron methyl 
      (IM), metsulfuron methyl (MSM) and mesosulfuron methyl (MSS). First of all, a 
      bare silica capillary was chosen with 10mM of 1-butyl-3-methylimidazolium 
      tetrafluoroborate (bminBF4) as electrophoretic buffer (pH 9.6) containing 2 mg 
      L(-1) of surfactant-coated single-wall carbon nanotubes (SC-SWCNTs). A dramatic 
      deviation in migration times was observed. Therefore, a 
      poly(diallyldimethylammonium) chloride (PDADMAC) statically coated cationic 
      capillary was used to improve repeatability and to alter the selectivity of the 
      separation. The electroosmotic flow (EOF) measurement revealed that the SC-SWCNTs 
      were strongly adsorbed at the surface of the PDADMAC coating even in the absence 
      of the surfactant-coated nanotubes in the electrolyte buffer. Consequently, a 
      stable strong cathodic EOF and excellent repeatabilities were obtained with 
      relative standard deviations (RSDs) on migration times and on corrected peak 
      areas below 0.9 and 1.5%, respectively. The separation of the SUs was conducted 
      in only 6 min. No regeneration of the coating between analyses was necessary, and 
      high peak efficiencies up to 173,000 theoretical plates were obtained. The 
      bi-layer coating was subsequently used to analyze sulfonylureas in tap water, in 
      several mineral waters as well as in underground waters spiked with SUs and 
      directly injected into the CE capillary.
CI  - Copyright (c) 2014 Elsevier B.V. All rights reserved.
FAU - El-Debs, Racha
AU  - El-Debs R
AD  - Institut de Chimie Organique et Analytique (ICOA), UMR 7311, Universite 
      d'Orleans, rue de Chartres, 45067 Orleans Cedex 2, France.
FAU - Nehme, Reine
AU  - Nehme R
AD  - Institut de Chimie Organique et Analytique (ICOA), UMR 7311, Universite 
      d'Orleans, rue de Chartres, 45067 Orleans Cedex 2, France. Electronic address: 
      reine.nehme@univ-orleans.fr.
FAU - Claude, Berengere
AU  - Claude B
AD  - Institut de Chimie Organique et Analytique (ICOA), UMR 7311, Universite 
      d'Orleans, rue de Chartres, 45067 Orleans Cedex 2, France.
FAU - Motteau, Solene
AU  - Motteau S
AD  - Institut de Chimie Organique et Analytique (ICOA), UMR 7311, Universite 
      d'Orleans, rue de Chartres, 45067 Orleans Cedex 2, France.
FAU - Togola, Anne
AU  - Togola A
AD  - BRGM, Direction des laboratoires, 3 Avenue Claude Guillemin, BP 36009, 45060 
      Orleans, France.
FAU - Berho, Catherine
AU  - Berho C
AD  - BRGM, Direction des laboratoires, 3 Avenue Claude Guillemin, BP 36009, 45060 
      Orleans, France.
FAU - Morin, Philippe
AU  - Morin P
AD  - Institut de Chimie Organique et Analytique (ICOA), UMR 7311, Universite 
      d'Orleans, rue de Chartres, 45067 Orleans Cedex 2, France.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140928
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (1-butyl-3-methylimidazolium tetrafluoroborate)
RN  - 0 (Allyl Compounds)
RN  - 0 (Electrolytes)
RN  - 0 (Imidazoles)
RN  - 0 (Nanotubes, Carbon)
RN  - 0 (Polyethylenes)
RN  - 0 (Quaternary Ammonium Compounds)
RN  - 0 (Surface-Active Agents)
RN  - 26062-79-3 (poly-N,N-dimethyl-N,N-diallylammonium chloride)
RN  - 368GB5141J (Sodium Dodecyl Sulfate)
RN  - 8MC08B895B (diallyldimethylammonium chloride)
RN  - 8W8T17847W (Urea)
SB  - IM
MH  - Allyl Compounds/chemistry
MH  - Electrolytes/chemistry
MH  - Electroosmosis
MH  - Electrophoresis, Capillary/*methods
MH  - Imidazoles/chemistry
MH  - Nanotubes, Carbon/*chemistry
MH  - Polyethylenes/chemistry
MH  - Quaternary Ammonium Compounds/chemistry
MH  - Sodium Dodecyl Sulfate/*chemistry
MH  - Surface-Active Agents/chemistry
MH  - Urea/*analysis
OTO - NOTNLM
OT  - Capillary coating
OT  - Capillary electrophoresis
OT  - Dispersed carbon nanotube
OT  - Ionic liquids
OT  - Polyelectrolyte
OT  - Sulfonylurea
EDAT- 2014/10/05 06:00
MHDA- 2015/05/20 06:00
CRDT- 2014/10/05 06:00
PHST- 2014/07/18 00:00 [received]
PHST- 2014/09/16 00:00 [revised]
PHST- 2014/09/18 00:00 [accepted]
PHST- 2014/10/05 06:00 [entrez]
PHST- 2014/10/05 06:00 [pubmed]
PHST- 2015/05/20 06:00 [medline]
AID - S0021-9673(14)01481-2 [pii]
AID - 10.1016/j.chroma.2014.09.047 [doi]
PST - ppublish
SO  - J Chromatogr A. 2014 Nov 7;1367:161-6. doi: 10.1016/j.chroma.2014.09.047. Epub 
      2014 Sep 28.