Results 21 to 30 of about 682,972 (294)

Blueprint records of thin-layer chromatograms

open access: yesJournal of Lipid Research, 1965
A new source of blueprint paper for recording thin-layer chromatograms is reported.
Norman S. Radin
doaj   +1 more source

Two-dimensional chromatography on silica gel-loaded paper for the microanalysis of polar lipids

open access: yesJournal of Lipid Research, 1966
Two-dimensional chromatography on commercially available silica gel-loaded paper for the microanalysis of polar lipids from various tissues is described. All common phospholipids and their lyso derivatives can be reproducibly separated.
R.E. Wuthier
doaj   +1 more source

Processing waste printed circuit boards for material recovery [PDF]

open access: yes, 2007
PURPOSE We have investigated the use of pyrolysis for the processing of waste printed circuit boards (PCBs). The aim was to make the process of separating the organic, metallic, and glass fibre fractions of PCBs much easier and therefore make ...
Hall, W.J., Williams, P.T
core   +1 more source

Sonogashira/N-acyliminium ion aromatic π-cyclisation processes: access to tetra- and pentacyclic lactams [PDF]

open access: yes, 2008
Application of the Sonogashira reaction of N-alkynylimides with 2-iodophenol or 2-iodo-N-tosylaniline affords 2-(N-alkylimino)-benzofurans and indoles in good yield.
Grigg, R., Sridharan, V., Sykes, D.A.
core   +1 more source

Facilitating insight into a simulation model using visualization and dynamic model previews [PDF]

open access: yes, 2012
This paper shows how model simplification, by replacing iterative steps with unitary predictive equations, can enable dynamic interaction with a complex simulation process.
Cribbin, T, de Folter, J
core   +1 more source

Pengembangan Media Praktikum PCT (Paper Chromatography Techniques) Berbasis Android dengan QR Code Technology pada Materi Pemisahan Campuran

open access: yesPendipa, 2022
The purpose of this study was to develop an android-based PCT (Paper Chromatography Techniques) practicum media with QR code technology on mixed separation materials to help improve the quality of learning, especially in general chemistry practicum ...
Mellyta Uliyandari   +2 more
doaj   +1 more source

Reactive organoallyl species generated from aryl halides and allene: allylation of alpha,beta-unsaturated aldehydes and cyclic ketones employing Pd/In transmetallation processes [PDF]

open access: yes, 2008
Allylation of α,β-unsaturated aldehydes and cyclic ketones promoted by Pd/In transmetallation processes has been studied. The unsaturated aldehydes underwent regioselective 1,2-addition to afford secondary homoally alcohols.
Anwar   +56 more
core   +2 more sources

Determination and Occurrence of Phenoxyacetic Acid Herbicides and Their Transformation Products in Groundwater Using Ultra High Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry [PDF]

open access: yes, 2014
This research is funded by the National Development Plan, through the Research Stimulus Fund, administered by the Department of Agriculture, Food and Marine (RS-544) and the Teagasc Walsh Fellowship Scheme.peer-reviewedA sensitive method was developed ...
Coxon, Catherine E.   +4 more
core   +2 more sources

Microfluidic Free‐Flow Paper Electrochromatography for Continuous Separation of Glycans

open access: yesChemElectroChem, 2022
Microfluidic free‐flow electrophoresis (μ‐FFE) is widely used for continuous separation of charged analytes. However, μ‐FFE is limited in the separation of analytes with the same electrophoretic mobility.
Yingchao Liu   +11 more
doaj   +1 more source

A field deployable method for a rapid screening analysis of inorganic arsenic in seaweed [PDF]

open access: yes, 2017
The authors thank the support for getting the seaweed samples from the projects funded under the Department of Agriculture, Food and the Marine’s Competitive research programmes in Ireland. Reference number 14 SF 860. The authors thank Corny Brombach for
Bralatei, Edi   +7 more
core   +2 more sources

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