Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-11-6
pubmed:abstractText
As a novel nanomaterial, titanate nanotube has attracted considerable attention recently. However, most of the research work is focused on the preparation of this nanomaterial, and there is lack of information about its application in the fields of environmental monitoring and analytical chemistry. The purpose of our study is to investigate the feasibility of titanate nanotubes as an adsorbent for solid-phase extraction of several phthalate esters. The titanate nanotubes in this study were prepared by alkaline hydrothermal method. The cationic surfactant cetyltrimethylammonium bromide (CTAB)-titanate nanotube system was adopted based on hemimicelles/admicelles formed on the mineral oxide surface. It was shown in the batch experiment that the highest adsorption of phthalate esters onto the CTAB-titania and -titanate nanotube system occurred when the CTAB was varied from 100 to 200mgg(-1) titania or 80 to 300mgg(-1) titanate nanotube separately. According to the fluorescent spectra of a molecular probe, N-phenyl-1-naphthylamine, and the binding constant of solute in CTAB admicelles, the CTAB-titanate nanotube admicelles was more hydrophobic than CTAB-titania admicelles. Consequently, CTAB-titanate nanotube admicelles system was suitable for concentrating phthalates esters in water. An admicelle column was prepared with 100mg of titanate nanotubes by passing through 100mgg(-1) titanate nanotube of CTAB. And excellent collection yields were obtained for all the analytes when the sample volume was up to 1000mL. Under the optimal conditions, the detection limits found for di-n-propyl-phthalate, di-n-butyl-phthalate, di-cyclohexyl-phthalate, and di-n-octyl-phthalate were 39, 19, 35 and 20ngL(-1), respectively. The developed method was successfully applied to the analysis of several real water samples and satisfactory recoveries were achieved. All the results indicated the application potential of titanate nanotubes as solid-phase extraction adsorbents to pre-treat water samples.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/1-Naphthylamine, http://linkedlifedata.com/resource/pubmed/chemical/Cetrimonium Compounds, http://linkedlifedata.com/resource/pubmed/chemical/Chlorophenols, http://linkedlifedata.com/resource/pubmed/chemical/Dibutyl Phthalate, http://linkedlifedata.com/resource/pubmed/chemical/Esters, http://linkedlifedata.com/resource/pubmed/chemical/N-phenyl-1-naphthylamine, http://linkedlifedata.com/resource/pubmed/chemical/Phthalic Acids, http://linkedlifedata.com/resource/pubmed/chemical/Surface-Active Agents, http://linkedlifedata.com/resource/pubmed/chemical/Titanium, http://linkedlifedata.com/resource/pubmed/chemical/Water, http://linkedlifedata.com/resource/pubmed/chemical/Water Pollutants, Chemical, http://linkedlifedata.com/resource/pubmed/chemical/cetrimonium, http://linkedlifedata.com/resource/pubmed/chemical/phthalic acid
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
1172
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
113-20
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed-meshheading:17963775-1-Naphthylamine, pubmed-meshheading:17963775-Cetrimonium Compounds, pubmed-meshheading:17963775-Chlorophenols, pubmed-meshheading:17963775-Chromatography, High Pressure Liquid, pubmed-meshheading:17963775-Dibutyl Phthalate, pubmed-meshheading:17963775-Environmental Monitoring, pubmed-meshheading:17963775-Esters, pubmed-meshheading:17963775-Feasibility Studies, pubmed-meshheading:17963775-Nanotubes, pubmed-meshheading:17963775-Phthalic Acids, pubmed-meshheading:17963775-Sensitivity and Specificity, pubmed-meshheading:17963775-Solid Phase Extraction, pubmed-meshheading:17963775-Surface-Active Agents, pubmed-meshheading:17963775-Titanium, pubmed-meshheading:17963775-Water, pubmed-meshheading:17963775-Water Pollutants, Chemical, pubmed-meshheading:17963775-Water Supply
pubmed:year
2007
pubmed:articleTitle
Cetyltrimethylammonium bromide-coated titanate nanotubes for solid-phase extraction of phthalate esters from natural waters prior to high-performance liquid chromatography analysis.
pubmed:affiliation
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Evaluation Studies