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Integrating Paper Chromatography with Electrochemical Detection for the Trace Analysis of TNT in Soil [PDF]

open access: goldSensors, 2015
We report on the development of an electrochemical probe for the trace analysis of 2,4,6-trinitrotoluene (TNT) in soil samples. The probe is a combination of graphite electrodes, filter paper, with ethylene glycol and choline chloride as the solvent ...
Patrick Ryan   +3 more
doaj   +4 more sources

Quantitative glass paper chromatography: phosphatidyl choline and sphingomyelin

open access: hybridJournal of Lipid Research, 1959
A rapid chromatographic procedure was developed for the separation of sphingomyelin, phosphatidyl choline, phosphatidyl ethanolamine, phosphatidyl serine, phosphatidyl inositol, and free fatty acids on glass paper coated with sodium silicate. In addition,
James E. Muldrey   +2 more
doaj   +2 more sources

Determination of citrate content in specialty paper based on headspace gas chromatography [PDF]

open access: yesFrontiers in Chemistry
A method for determining citrate content in specialty paper using headspace gas chromatography (HS-GC) is proposed. This method is based on the reaction between sodium citrate and potassium permanganate under acidic conditions, which generates CO2.
Qiyu He   +10 more
doaj   +2 more sources

A Review on Radiochemical Purity Analysis Methods of Radiopharmaceuticals

open access: yesJournal of Isotopes, 2021
Radiopharmaceuticals means radionuclide preparations or labeled compounds for clinical diagnosis or therapeutic use. Radiochemical purity is one of the important judgment indexes to measure the quality of radiopharmaceuticals, which directly affects the ...
ZHANG Yun;YANG Liu;JIANG Hua
doaj   +1 more source

Impact of Acid Rain with Different pH Values in Monstera deliciosa Plants

open access: yesMedical Sciences Forum, 2023
The present research experimentally outlines the reaction of a Monstera deliciosa plants to the effects of acid rain at various pH levels. Sulfuric acid was used to simulate acid rain, with prepared solutions having four different pH values.
Afonso Ramos   +4 more
doaj   +1 more source

Phenylcarbamate-Modified Paper for Paper Chromatographic Analysis of Hydrophobic Compounds

open access: yesTechnologies, 2022
Paper chromatography is a low-cost and facile analytical method traditionally used to analyze hydrophilic substances. For the application to substances with lower polarity, we prepared a stationary phase based on filter paper modified with phenyl ...
Bungo Ochiai   +2 more
doaj   +1 more source

Mathematical characterization of ink diffusion and imbibition processes in chromatography paper as a potential biosensing platform

open access: yesSensing and Bio-Sensing Research, 2021
Materials used for biosensor development normally include silicon, glass, and synthetic polymers, however, paper is a practical and cheap option for the reduction of manufacturing costs with a wide range of applications.
V.A. Mirón-Mérida   +6 more
doaj   +1 more source

Inorganic paper chromatography [PDF]

open access: yesChromatographic Reviews, 1949
PROF. K. P. LINSTEAD kindly sent me a manuscript copy of the communication by Burstall, Davies, Linstead and Wells1, and I should like to comment on this work in relation to my own.
openaire   +2 more sources

Chromatography of lipids on commercial silica gel loaded filter paper

open access: yesJournal of Lipid Research, 1965
Commercial silica gel loaded filter paper has been found to give good separations of neutral lipids and phospholipids. Unidimensional or two-dimensional chromatography can be used. Rat liver lipids and C14-algae lipids were studied.
G.V. Marinetti
doaj   +1 more source

Conical Paper Chromatography [PDF]

open access: yesNature, 1957
A CIRCULAR filter paper suitable for partition paper chromatography is cut so that it can be made into a cone. A number of origins are marked at adequate intervals near the lower edge, the standard and unknown solutions are dropped on these origins (see Fig. 1) and chromatographic development allowed to take place in an upward direction.
openaire   +2 more sources

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