Results 1 to 10 of about 359,301 (251)
Integrating Paper Chromatography with Electrochemical Detection for the Trace Analysis of TNT in Soil [PDF]
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
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Determination of citrate content in specialty paper based on headspace gas chromatography [PDF]
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
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A Review on Radiochemical Purity Analysis Methods of Radiopharmaceuticals
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
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Impact of Acid Rain with Different pH Values in Monstera deliciosa Plants
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
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Phenylcarbamate-Modified Paper for Paper Chromatographic Analysis of Hydrophobic Compounds
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
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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
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Chromatography of lipids on commercial silica gel loaded filter paper
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
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Study on migration mechanism of sweeteners in tipping paper
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
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Two-dimensional chromatography on silica gel-loaded paper for the microanalysis of polar lipids
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
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Detection of phospholipids on paper chromatograms by neutron activation
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
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