Relevant bibliographies by topics / Sulfate(lauryl)|sub

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  2. Dissertations / Theses

Academic literature on the topic 'Sulfate(lauryl)|sub'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Sulfate(lauryl)|sub"

1

Hill, Robert L., and Linda D. Rhein. "CHARACTERIZATION OF THE SUB-MICELLAR SPECIES IN MIXED SURFACTANT SOLUTIONS I: MIXTURES OF SODIUM LAURYL SULFATE AND AN ALKYL POLYETHOXY SULFATE." Journal of Dispersion Science and Technology 9, no. 3 (January 1988): 269–308. http://dx.doi.org/10.1080/01932698808943989.

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2

Murray, Anna L., Emily Kumpel, Rachel Peletz, Ranjiv S. Khush, and Daniele S. Lantagne. "The effect of sodium thiosulfate dechlorination on fecal indicator bacteria enumeration: laboratory and field data." Journal of Water and Health 16, no. 1 (December 4, 2017): 70–77. http://dx.doi.org/10.2166/wh.2017.077.

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Abstract In microbiological water quality testing, sample dechlorination with sodium thiosulfate is recommended to ensure that results accurately reflect the water quality at sample collection. Nevertheless, monitoring institutions in low-resource settings do not always dechlorinate samples, and there is limited research describing how this practice impacts drinking water quality results. The effect of dechlorination on indicator bacteria counts was evaluated by spiking laboratory water with five Escherichia coli (E. coli) concentrations (104–108 CFU/100 mL), chlorinating at six doses (0–0.6 mg/L), holding samples with and without sodium thiosulfate for 5–7 hours, and enumerating E. coli by membrane filtration with m-lauryl sulfate media. Additionally, sub-Saharan African water suppliers enumerated thermotolerant coliform by membrane filtration in paired chlorinated water samples collected with and without sodium thiosulfate. Across all E. coli and chlorine doses in the laboratory, and all field tests, samples held without sodium thiosulfate had lower bacteria counts (p < 0.001). Additionally, chlorinated water supply samples held without sodium thiosulfate had an 87.5% false negative rate. Results indicate the importance of dechlorinating microbiological water quality samples, discarding data from chlorinated samples collected without dechlorination, and reinforcing dechlorination recommendations in resource-limited environments to improve water safety management.
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3

Cui, Ya Ru, Yun Hua Xu, Kai Mao Li, Xiao Ming Li, Jun Yang, and Juan Wang. "Electroless Copper Plating on Ti3SiC2 Powder Surface Using Ascorbic Acid as a Reducing Agent." Materials Science Forum 658 (July 2010): 471–74. http://dx.doi.org/10.4028/www.scientific.net/msf.658.471.

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Cu-coated Ti3SiC2 powder was fabricated by electroless copper plating method from CuSO4 using poisonless ascorbic acid (C6H6O4(OH)2) as reducing agent. Sensibilization and activation on Ti3SiC2 powder surface was performed by Sn-Ag catalyst system. Surfactants lauryl sodium sulfate (SDS) and Polysorbate 80 (Tween-80) were used as modifiers to control copper particle sizes and shapes. It is found that good pretreatment and activation can obtain fully-formed copper coating. The optimal copper deposition rate can reach to 2.053 g.dm-2.h-1 at 80°C . The best coating effect can be obtained in the samples modifying with 12g/L SDS+8ml/L Tween-80.
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Parra, Cristina, Gema González, and Carmen Albano. "Synthesis and characterization of poly(methyl methacrylate) obtained by ultrasonic irradiation." e-Polymers 5, no. 1 (December 1, 2005). http://dx.doi.org/10.1515/epoly.2005.5.1.273.

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AbstractWe have studied the influence of surfactant nature and concentration, and monomer concentration on the synthesis of poly(methyl methacrylate) (PMMA) using high-frequency ultrasound. Polymerization was carried out via free radicals from aqueous solutions with several concentrations of an anionic (sodium lauryl sulfate, SLS) or a cationic surfactant (cetyltrimethylammonium bromide, CTAB) and different concentrations of the insoluble monomer methyl methacrylate (MMA) as the dispersed phase. The polymer particles obtained were characterized by FTIR, differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The IR spectra show the presence of the characteristic absorption bands for PMMA when SLS was used. When CTAB was employed, for all surfactant concentrations and high monomer concentration (14% v/v), PMMA was obtained. However, bands of the surfactant were present for lower monomer concentrations. The glass transition temperature measured by DSC was in the range 106 - 126°C characteristic of PMMA. Maximum conversion was obtained when the anionic surfactant was employed. SEM studies show the formation of sub-micrometric PMMA latex spheres with average particle size from 65 to 100 nm when the anionic surfactant was used and 65 nm - 0.3 μm for the cationic surfactant.
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Dissertations / Theses on the topic "Sulfate(lauryl)|sub"

1

Yaacoubi, Abdelrani. "Etude de l'influence d'ions metalliques et de composes organiques sur l'adsorption du dodecyl sulfate de sodium sur charbon actif." Poitiers, 1988. http://www.theses.fr/1988POIT2286.

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Les resultats experimentaux (cinetique rapide d'adsorption, parametre d'equilibre des isothermes d'adsorption et variation du potentiel zeta des particules de charbon) montrent une augmentation de la capacite d'adsorption du dodecylsulfate de sodium en presence d'ions metalliques et une inhibition mutuelle de l'adsorption en presence d'alcools aliphatiques et de composes organiques
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2

Bennis, Khalil. "Etude de l'adsorption et de la reduction electrochimique sur electrode de mercure de quelques cetones en presence de tensio-actifs en milieu aqueux." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF2E406.

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Etude de la reduction electrochimique de l'acetophenone, l'oxyde de mesityle et l'ethylideneacetone en milieu aqueux en presence d'agents de surface anioniques (laurylsulfate de sodium), d'agents de surface cationiques (bromure de benzyltrimethylammonium et bromure de cetyltrimethylammonium) et d'agents de surface non ioniques (brij 35 et poly(oxyethylene))
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3

Bernasconi, Pascal. "Flottation ionique : Analyse des mécanismes pour les tensio-actifs, application à la purification de solutions uranifères." Nancy 1, 1986. http://www.theses.fr/1986NAN10117.

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Les mécanismes contrôlant l'extraction d'ions par flottation ionique à l'aide de tensioactifs ioniques à longue chaîne sont décrits à travers l'étude de la récupération du baryum par le laurylsulfate de NA. Mise au point d'un modèle, appliqué à la récupération du zirconium dans les solutions acides de nitrate d'uranyle
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