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

open access: yesSensors, 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   +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

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

Study on migration mechanism of sweeteners in tipping paper

open access: yesShipin yu jixie, 2022
Objective: This study aimed to solve the problem of cigarette flavoring technology that the surface taste of splicing paper weakens over time. Methods: A rapid method for the simultaneous determination of two kinds of sweeteners was established based on ...
ZHANG Qin   +3 more
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

Detection of phospholipids on paper chromatograms by neutron activation

open access: yesJournal of Lipid Research, 1965
Improvements in the detection of phospholipids on paper chromatograms by neutron activation (with the formation of P32-compounds) have been made. Formaldehyde-treated papers were subjected to low neutron dosage after chromatographic development and the ...
Peter Johnson   +3 more
doaj   +1 more source

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