Adsorption and Desorption of Triton X-100 in Polystyrene Particles with Different Functionality

Romero-Cano, Manuel S.; Martín-Rodríguez, Agustín; Nieves, F. J. de las

doi:10.1006/jcis.2000.6862

Cited by 38 publications

(35 citation statements)

References 35 publications

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“…Therefore, a similar qualitative tendency between the adsorption isotherms and the desorption curves has been found. In accord with the adsorption results (15), this amount of remaining adsorbed surfactant corresponds to the initial experimental points of the adsorption isotherms.…”

Section: Desorptionsupporting

confidence: 76%

“…The characterization of polystyrene latices with different functionality (sulfate, carboxyl, and amidine) and surfactant Triton X-100 has been given in the first paper (15). Latex-surfactant complexes with maximum coverage were prepared, giving the same results an in our previous adsorption study.…”

Section: Methodsmentioning

confidence: 98%

“…It is possible to directly relate this adsorption model to the descriptive adsorption mechanism proposed in the first paper (15). The high-affinity sites correspond to the preferential adsorption sites, and, on the other hand, the low-affinity sites correspond to difficult adsorption sites.…”

Section: Figmentioning

confidence: 97%

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Adsorption and Desorption of Triton X-100 in Polystyrene Particles with Different Functionality

Romero-Cano

Martín-Rodríguez

2000

Journal of Colloid and Interface Science

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Section: Desorptionsupporting

confidence: 76%

Section: Methodsmentioning

confidence: 98%

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Adsorption and Desorption of Triton X-100 in Polystyrene Particles with Different Functionality

Romero-Cano

Martín-Rodríguez

2000

Journal of Colloid and Interface Science

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“…Because the final concentration of particles was 4:5 Â 10 6 -5:7 Â 10 5 particles mL À1 , the amount of surfactants was enough to cover all polystyrene particle surfaces. [17][18][19] Silica Surface and Its Modification. The adsorption force of polystyrene particles was investigated for a bare fused-silica and a surface-modified fused-silica using squalane.…”

Section: Methodsmentioning

confidence: 99%

Electromagnetophoretic Measurements of Adsorption Forces of Polystyrene Microparticles on Silica Surfaces in Surfactant Solutions

Iiguni¹,

Watarai²

2006

Bulletin of the Chemical Society of Japan

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An electromagnetophoretic force has been applied for the measurement of the adsorption force of a single polystyrene particle to a silica surface in electrolyte solutions. By the electromagnetophoretic buoyancy, polystyrene microparticles in a fused-silica capillary were made to migrate perpendicular to the wall of the capillary. A switching of the current direction and a gradual increase of the current under a homogeneous magnetic field of 10 T could desorb the single particle from the wall and allowed us to measure the adsorption force from the desorbing current with a sensitivity of pN. By this method, the adsorption forces of polystyrene particles on a bare surface and on a squalane-coated fused-silica surface were measured in the absence and the presence of surfactants such as Triton X-100, cetyltrimethylammonium bromide, and sodium dodecyl sulfate. The observed adsorption forces showed that the roles of the surfactants included not only the reduction of the adsorption force as a spacer, but also the production of a characteristic force due mainly to electrostatic interaction.

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“…The adsorption mechanism of polyoxyethylene-type nonionic surfactants onto polystyrene surfaces has been discussed in the field of surface and colloid chemistry. [21][22][23] According to these studies, the surfactant molecules bind their hydrophobic moieties on the polystyrene surfaces by the hydrophobic interaction, thus orientating their hydrophilic ethylene oxide chains toward the aqueous phase. Some organized structures, such as monolayer, hemisphere, and hemicylinder, have been proposed in the literature.…”

Section: Preparation Of Spe Sorbentmentioning

confidence: 99%

Solid-Phase Extraction Followed by HPLC for the Determination of Phosphorus(V) and Arsenic(V)

2009

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Traces of P(V) and As(V) in sample solutions were converted into heteropoly molybdic acids at pH 1.5 and collected onto polyoxyethylene(20)-4-isononylphenoxy ether-coated Amberlite XAD-4 particles. The desorption was carried out with 0.3 M tetramethylammonium hydroxide solution for the HPLC analysis. Molybdophosphoric and molybdoarsenic acids were separated from excess molybdate by ion-pair reversed phase HPLC, though the peaks of P(V) and As(V) could not be resolved. However, the selective decomposition of molybdoarsenic acid with citric acid allowed the differential determination of P(V) and As(V) at the ng mL -1 level. The proposed method was applied to the analysis of high-purity iron for P and As.

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Adsorption and Desorption of Triton X-100 in Polystyrene Particles with Different Functionality

Cited by 38 publications

References 35 publications

Adsorption and Desorption of Triton X-100 in Polystyrene Particles with Different Functionality

Adsorption and Desorption of Triton X-100 in Polystyrene Particles with Different Functionality

Electromagnetophoretic Measurements of Adsorption Forces of Polystyrene Microparticles on Silica Surfaces in Surfactant Solutions

Solid-Phase Extraction Followed by HPLC for the Determination of Phosphorus(V) and Arsenic(V)

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