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Anionic surfactant
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Among the various derivatives of alkyl polyglucoside, the anionic alkyl polyglycoside esters (AGEs) and AGE-nonionic surfactant mixtures can able to increase wettability, and it may increase mineral content in soils. The phosphate alkyl polyglucosides show good performance in detergency and better wetting properties with good biodegradability. The sulfonated alkyl polyglucosides are a good alternative to nonylphenol ethoxylate and exhibit superior cleaning of edible oil.
12p
dianmotminh02
03-05-2024
3
1
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Anionic and non-ionic surfactants have been detected in the influents to and effluents from wastewater treatment plants (WWTPs). Linear alkylbenzene sulphonates (LAS) and alkylphenol ethoxylates (APEO) are the most frequently detected anionic and non-ionic surfactants in urban wastewater. The aim of this study was to assess the effect of the presence of anionic and non-ionic surfactants in the influent to WWTPs on activated sludge processes.
111p
runthenight05
01-03-2023
3
2
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Surfactant is an amphiphilic substance that contains both hydrophilic and hydrophobic properties due to its head group and hydrocarbon tail, respectively. Surfactants have many industrial applications such as in detergents, textiles, paints, pharmaceuticals, and cosmetics, and so on.
5p
viargus
03-03-2023
4
2
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Municipal wastewater treatment plants generally utilise biological activated sludge processes to remove organic compounds and nitrogen. The biological nitrogen removal (BNR) occurs in two steps, nitrification (ammonium removal) and denitrification (nitrates removal). This study focused on a medium-sized wastewater treatment plant (WTP) which experienced poor nitrification for years, mainly when the weather temperature drops.
125p
runthenight07
01-03-2023
5
2
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This work describes the electrochemical investigation of a promising antiviral agent, favipiravir (FAV) utilizing a nonmodified glassy carbon (GC) electrode, along with a unique voltammetric approach that can determine FAV with a good degree of accuracy, speed, and cost-effectiveness. Using cyclic voltammetry, the compound demonstrated a single well-defined and an irreversible oxidation peak at approximately +1.12 V (vs. Ag/AgCl) in Britton–Robinson (BR) buffer at pH 10.0.
12p
lyhuyenthu
31-01-2023
5
2
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In environmental risk assessment, it is essential to understand the relationship between molecular structure and fate and toxicity of organic contaminants. For surfactants, physico-chemical parameters which can reflect the interactions that determine surfactant behavior are not well defined and are therefore needed for the development of robust quantitative structure-activity relationships (QSAR).
8p
viginny
23-12-2022
8
3
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We present a new liquid chromatography–tandem mass spectrometry (LC-MS/MS) method for simultaneous determination of sodium lauryl sulfate and sodium laureth sulfate homologues in the range of alkyl chain length C12–C16 with 0–5 ethoxy groups. The method is based on scanning the precursor ions fragmenting to m/z 80 and 97 (Precursor Ion Scanning mode), which makes it specific for species with easily cleavable sulfate groups.
11p
viginny
23-12-2022
6
3
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In this paper, the potential of micellar solutions of the anionic surfactant sodium dodecyl sulfate (SDS) as eluents in dispersive micro-solid phase extraction (D-μSPE) using polydopamine-coated magnetite nanoparticles (Fe3O4@PDA NPs) for the extraction and preconcentration of seven basic drugs (bupropion, citalopram, fluoxetine, mianserin, nomifensine, trimipramine, and viloxazine) is explored for the first time (to the best to our knowledge) and compared with conventional hydro-organic eluents.
8p
vironald
15-12-2022
9
3
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Aqueous microemulsions (MEs), where an oil coexists with water in the presence of the anionic surfactant sodium dodecyl sulphate (SDS), have been proposed as a solution to decrease the amount of organic solvent in the mobile phase needed in reversed-phase liquid chromatography (RPLC).
10p
vironald
15-12-2022
10
2
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Mixtures of surfactants are the most important ingredients which are combined to improve the application properties of liquid detergent. In this study, we evaluated the biological, chemical, and physical properties of various mixtures of anionic, non-ionic, and amphoteric surfactants.
8p
viirenerosenfeld
26-05-2022
11
2
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In this study, encapsulation processes of cetyltrimethylammonium bromide (CTAB) or sodium dodecyl sulfate (SDS) monomers into the cavity of β -cyclodextrin (β -CD) were applied to synthesize mono- and bis (indolyl)methylmalononitrile derivatives by a one-pot three-component reaction of an aldehyde, malononitrile, and indole in an aqueous solution. These two inclusion complexes proved to be superior to CTAB or SDS individually, as cationic or anionic surfactants, respectively, for accessing high yields of pure products within shorter reaction times.
9p
tudichquannguyet
29-11-2021
6
1
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In this study, nano zinc borate powder was synthesized by a wet chemical method and the effects of nonionic, anionic, and cationic surfactants on the particle size and morphology of the zinc borate particles were investigated. Chemical purity and physical structures of the synthesized zinc borate powder were analyzed by XRD, FTIR, TG-DTA, TEM, and Zetasizer. The analysis results showed that the zinc borate powder had a chemical formula of 2ZnO·3B2O3·7H2O.
10p
tudichquannguyet
29-11-2021
10
2
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In this study, the electrochemical properties of desloratadine, which is in the second generation antihistamines group, were determined by bismuth film electrode (BiFE) in aqueous and aqueous/surfactant solutions. This compound gave an irreversible and diffusion-controlled reduction peak at about –1.65 V by cyclic voltammetry. It was found that the addition of cationic surfactants (cetyltrimethylammonium bromide (CTAB) increased the reduction current signal of desloratadine, while anionic (sodium dodecylsulfate (SDS) and nonionic (Tween 80) surfactants were found to have an adverse effect.
13p
tudichquannguyet
29-11-2021
3
0
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A novel sensor fabrication using anionic surfactant sodium lauryl sulphate modified carbonnanotube and pencil graphite composite paste electrode (SLSMCNTPGCPE) is prepared and characterized using Field Emission Scanning Electron Microscope (FE-SEM) and Cyclic Voltammetry (CV).
9p
tamynhan4
06-09-2020
13
1
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A new automated procedure for preconcentration and analysis of anionic surfactants in water using solid-phase extraction (SPE) in a flow injection (Fl) system together with an UV-vis detection is reported in this paper. The method involves extraction of blue coloured ion-pair complex of anionic surfactants and methylene blue into solid phase and their elution from the SPE column with organic solvent (chloroform stabilised with methanol) and subsequent measurement in an UV-vis flow cell at 650 nm. The system is well optimised before to apply for analysis of real samples.
6p
uocvong03
24-09-2015
53
3
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An important improvement in polypyrrole film protection efficiency of iron was obtained by doping the polypyrrole film during the synthesis with a surfactant as the dodecylsulfate. These counter-ions have a very weak mobility in the polypyrrole, which thus becomes cationic permselective. The chloride anions penetration in the films is hence strongly reduced.
5p
uocvong03
24-09-2015
49
2
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5 Biological Activity of Waters Containing Cationic Surfactants Cationic surfactants along with anionic and nonionogenic surfactants are one of the main classes of surfactants. The proportion of cationic surfactants in the total volume of synthetic surfactants used in the economy is approximately equal to 22% (for the U.S.; Ainsworth 1992). Cationic surfactants enter aquatic ecosystems together with polluted waters because they are widely used in many industries including petroleum industry, oil refining industry, petrochemical industry, and gas industry.
19p
hoakimthienduong
19-12-2011
67
8
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4 Biological Activity of Waters Containing Nonionogenic Surfactants Nonionogenic surfactants are second to anionic surfactants by the amount of their production and discharge into aquatic ecosystems (Surfactants 1984; Steinberg et al. 1995; Bailey 1996; Thiele et al. 1997). The main classes of nonionogenic surfactants are alcohol ethoxylates and oxides of fatty amines. In 1988, the worldwide annual consumption of nonionogenic surfactants belonging to the alkyl phenol ethoxylates was approximately equal to 360,000 tons (Ahel et al. 1993).
33p
hoakimthienduong
19-12-2011
58
8
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3 Biological Activity of Waters Containing Anionic Surfactants The effects of aquatic media containing anionic surfactants on organisms is of great hydrobiological and ecological interest as these xenobiotics are released to the hydrosphere in largest amounts as compared with other surfactants. In most if not all countries including Russia, anionic surfactants predominate among the synthetic surfactants produced and used. In some countries, production and consumption of anionic surfactants reached 65% (on a weight basis) of the total consumption of surfactants (for the U.S.
43p
hoakimthienduong
19-12-2011
86
10
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Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Ecophysiological responses of Mediterranean pines to simulated sea aerosol polluted with an anionic surfactant: prospects for biomonitoring"
10p
toshiba5
19-09-2011
55
3
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