Articles with "polar organic" as a keyword



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Enantiomeric quality control of R‐Tofisopam by HPLC using polysaccharide‐type chiral stationary phases in polar organic mode

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Published in 2018 at "ELECTROPHORESIS"

DOI: 10.1002/elps.201800220

Abstract: A novel, fast and economic chiral HPLC method was developed and validated for the resolution of the four isomers of tofisopam. The separation capacity of eleven different chiral columns: six polysaccharide‐type including three amylose‐based (Chiralpak… read more here.

Keywords: hplc; mode; polar organic; polysaccharide type ... See more keywords
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Development and Calibration of the Polar Organic Chemical Integrative Sampler (POCIS) for Neonicotinoid Pesticides.

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Published in 2020 at "Environmental toxicology and chemistry"

DOI: 10.1002/etc.4729

Abstract: Neonicotinoid pesticides are highly hydrophilic systemic insecticides that have been extensively used worldwide. To evaluate their environmental risks, the concentrations of these pesticides in the aquatic environment must be monitored. While Polar Organic Chemical Integrative… read more here.

Keywords: polar organic; sampler; pocis; organic chemical ... See more keywords
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Development of a New Polar Organic Chemical Integrative Sampler for 1,4‐dioxane Using Silicone Membrane as a Diffusion Barrier

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Published in 2022 at "Environmental Toxicology and Chemistry"

DOI: 10.1002/etc.5518

Abstract: Efficient monitoring methods must be developed for 1,4‐dioxane, which is suspected to be carcinogenic to humans and is highly mobile in aquatic environments. In this regard, polar organic chemical integrative samplers (POCIS) have been utilized… read more here.

Keywords: development new; dioxane; organic chemical; chemical integrative ... See more keywords
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Efficient preparative separation of 6-(4-aminophenyl)-5-methyl-4, 5-dihydro-3(2H)-pyridazinone enantiomers on polysaccharide-based stationary phases in polar organic solvent chromatography and supercritical fluid chromatography.

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Published in 2019 at "Journal of separation science"

DOI: 10.1002/jssc.201900253

Abstract: 6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone is a key synthetic intermediate for cardiotonic agent levosimendan. Very few studies address the use of chiral stationary phases in chromatography for the enantioseparation of this intermediate. This study presents two efficient preparative methods… read more here.

Keywords: chromatography; polar organic; aminophenyl methyl; dihydro pyridazinone ... See more keywords
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Enantiomeric analysis of simendan on polysaccharide-based stationary phases by polar organic solvent chromatography.

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Published in 2020 at "Journal of separation science"

DOI: 10.1002/jssc.201901080

Abstract: Herein, the enantiomeric separation of simendan by HPLC with ultraviolet detection method using polysaccharide-based chiral stationary phases in polar organic mode is described. Three chiral columns (Chiralpak AD-H, Chiralcel OD-H, and Chiralpak AS) were screened… read more here.

Keywords: polar organic; simendan; phases polar; polysaccharide based ... See more keywords
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Unravelling the role of membrane pore size in polar organic chemical integrative samplers (POCIS) to broaden the polarity range of sampled analytes

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Published in 2022 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-021-03832-4

Abstract: Polar organic chemical integrative samplers (POCIS) are widely used in their standard configuration for sampling contaminants in water bodies. A wider polyethersulfone (PES) membrane pore size was employed in POCIS exposed in a static calibration… read more here.

Keywords: size; polar organic; pore size; membrane ... See more keywords
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Polar organic compounds in PM10 and PM2.5 atmospheric aerosols from a background Eastern Mediterranean site during the winter period: Secondary formation, distribution and source apportionment

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Published in 2020 at "Atmospheric Environment"

DOI: 10.1016/j.atmosenv.2020.117622

Abstract: Atmospheric particle samples with aerodynamic diameter read more here.

Keywords: secondary formation; winter period; organic compounds; polar organic ... See more keywords
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Quantitative evaluation of polyethersulfone and polytetrafluoroethylene membrane sorption in a polar organic chemical integrative sampler (POCIS).

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Published in 2020 at "Environmental pollution"

DOI: 10.1016/j.envpol.2020.115224

Abstract: The lag effect in the polar organic chemical integrative sampler (POCIS) equipped with a polyethersulfone (PES) membrane (POCIS-PES) is a potential limitation for its application in water environments. In this study, a POCIS with a… read more here.

Keywords: polar organic; membrane sorption; pocis; organic chemical ... See more keywords
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In situ calibration of polar organic chemical integrative sampler (POCIS) for monitoring of pharmaceuticals in surface waters.

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Published in 2020 at "Environmental pollution"

DOI: 10.1016/j.envpol.2020.116121

Abstract: POCIS is the most widely applied passive sampler of polar organic substances, because it was one of the first commercially available samplers for that purpose on the market, but also for its applicability for a… read more here.

Keywords: surface waters; polar organic; situ calibration; sampler ... See more keywords
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Giant Pockels effect of polar organic solvents and water in the electric double layer on a transparent electrode

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Published in 2017 at "RSC Advances"

DOI: 10.1039/c7ra05875f

Abstract: The Pockels effect of polar organic solvents and water within the electric double layer (EDL) on an indium–tin–oxide (ITO) electrode is studied to find that water has the largest Pockels coefficient (230 pm V−1), followed… read more here.

Keywords: organic solvents; polar organic; water; pockels effect ... See more keywords
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Application of the Polar Organic Chemical Integrative Sampler for Isolation of Environmental Micropollutants – A Review

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Published in 2019 at "Critical Reviews in Analytical Chemistry"

DOI: 10.1080/10408347.2019.1565983

Abstract: Abstract Aquatic passive samplers have been extensively tested and deployed in the field over the past two decades. Among these devices is relatively recently developed the Polar Organic Chemical Integrative Sampler (POCIS) for isolation of… read more here.

Keywords: polar organic; integrative sampler; chemical; organic chemical ... See more keywords