|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | TiO_2 nanotubes as solid-phase extraction adsorbent for the determination of polycyclic aromatic hydrocarbons in environmental water samples显示文摘An analytical method based on TiO 2 nanotubes solid-phase extraction (SPE) combined with gas chromatography (GC) was established for the analysis of seven polycyclic aromatic hydrocarbons (PAHs): acenaphtylene, acenaphthene, anthracene, fluorene, phenanthrene, fluoranthene and pyrene. Factors affecting the extraction efficiency including the eluent type and its volume, adsorbent amount, sample volume, sample pH and sample flow rate were optimized. The characteristic data of analytical performance were determined to investigate the sensitivity and precision of the method. Under the optimized extraction conditions, the method showed good linearity in the range of 0.01-0.8 μg/mL, repeatability of the extraction (RSD were between 6.7% and 13.5%, n = 5) and satisfactory detection limits (0.017-0.059 ng/mL). The developed method was successfully applied to the analysis of surface water (tap, river and dam) samples. The recoveries of PAHs spiked in environmental water samples ranged from 90% to 100%. All the results indicated the potential application of titanate nanotubes as solid-phase extraction adsorbents to pre-treat water samples. | Bochra Bejaoui Kefi Latifa Latrous El Atrache Hafedh Kochkar Abdelhamid Ghorbel | 2011 | Journal of Environmental Sciences2011，23，5： | 10 |
| 2 | Oxidation of Potato Starch with NO2:Characterization of the Carboxylic Acid Salts显示文摘 | Kochkar H Morawletz M Holderich W F | 2001 | App Catal A:General2001，210，12： | 1 |
| 3 | Synthesis of hydrophobic TiOz-SiOz mixed oxides for the epoxldation of cyclohexene显示文摘 | Kochkar H Figueras F | 1997 | J Catal1997，171，2： | 1 |
| 4 | Oxidation of potato starch with NO 2 : characterization of the carboxylic acid salts显示文摘 | H. Kochkar M. Morawietz W.F. H?lderich | 2001 | Applied Catalysis A General2001，，1： | 1 |
| 5 | TiO2 nanotubes as solid-phase extraction adsorbent for the determination ofpolycyclic aromatic hydrocarbons in environmental water samples显示文摘 | KEFI B B EL-ATRACHE L L KOCHKAR H | | Journal of Environmental Sciences0，，： | 1 |
| 6 | Oxidation of potato starch with nitrogen dioxide:characterization of the carboxylic acid salts显示文摘 | Morawietz M Holderich W | 2001 | Applied Catalysis2001，，210： | 1 |
| 7 | Crystallization of hydrophobic mesoporous titano-silicates useful as epoxidation catalysts 显示文摘 | FrancEois Figueras Hafedh Kochkar Stefano Caldarelli | 2000 | Microporous and Mesoporous Materials2000，，39： | 1 |
| 8 | Optimization of the alkaline hydrothermal route to titanate nanotubes by a doehlert matrix experience design显示文摘 | Hafedh Kochkar Nesrine Lakhdhar Gilles Berhault | 2009 | J Phys Chem C2009，113，： | 1 |
| 9 | 显示文摘 | Claeens J M Montiel R Kochkar H | 2004 | Applied Catalysis B2004，53，1： | 1 |
| 10 | Crystallization of hydrophobic mesoporous titano-silicates useful as epoxidation catalysts显示文摘 | Figueras F Kochkar K Caldarelli S | 2000 | Microporous and Mesoporous Materials2000，39，： | 1 |
| 11 | 查看详情显示文摘 | Kochkar H Aouine M Ghorbel A Berhault G | | 0，，： | 1 |
| 12 | Study of Pd(Ⅱ) adsorption over titanate nanotubes of different diameters显示文摘 | KOCHKAR Hafedh TURKI Asma BERGAOUI Latifa | | 0，，01： | 1 |
| 13 | Regioselective oxidation of hydroxyl groups of sugar and its derivatives using silver catalysts mediated by TEMPO and peroxodisnlfate in water显示文摘 | Kochkar H Lassalle L Morawietz M | 2000 | Journal of Catalysis2000，194，： | 1 |
| 14 | Cytotoxic T lymphocyte antigen-4 gene polymorphisms and susceptibility to type 1 autoimmune hepatitis in the Tunisian population显示文摘Genetic factors and gene polymorphisms leading to the onset of autoimmune response in autoimmune hepatitis(AIH)are still not full elucidated.Since the CTLA-4 molecule is a key modulator of the lymphocytes responses we hypothezied that deficiencies or mutations in the gene encoding CTLA4 protein may be involved in AIH susceptibility and trigger the autoimmune response.We investigated 3 distinct polymorphic sites(t49A>G,CT60 G>A and e318C>T)of the CTLA4 gene in 50 AIH patients and 100 healthy controls using the KASP genotyping technology.A significant positive association with AIH susceptibility was found for the GG genotype in t49 position of the CTLA4 gene which was significantly higher in AIH patients compared to controls(28%vs 9%,pZ0.003,ORZ3.93[1.56e9.88]).The CTLA4 A/A genotype in position CT60 was more significantly frequent in controls comparing to AIH patients and could be considered as a protective genotype for the tunisian patients.CTLA4 genotyping in position318 did not show any statistically significant difference in genotype or allele distribution.The CTLA4 gene polymorphism in position t49 is associated to AIH susceptibility in the Tunisian population.Mutation in the CTLA4 gene may lead to a modification of the CTLA4 protein structure that could have functional relevance in AIH pathogenesis and onset. | Marwa Chaouali Agostinho Carvalho Aymen Tezeghdenti Mouna Ben Azaiez Cristina Cunha Ezzeddine Ghazouani Radhia Kochkar | 2018 | Genes & Diseases2018，5，3： | 1 |
| 15 | Oxidation of potato starch with nitrogen dioxide:characterization of the carboxylic acid salts显示文摘 | Morawietz M Holderich W | 2001 | Applied Catalysis2001，，210： | 1 |
| 16 | Crystallization of hydrophobic mesoporous titano-silicates useful as epoxidation catalysts显示文摘 | Figueras F Kochkar K Caldarelli S | 2000 | Microporous and Mesoporous Materials2000，39，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员