Results 1 to 10 of about 18,558,452 (357)
Integrating Paper Chromatography with Electrochemical Detection for the Trace Analysis of TNT in Soil [PDF]
Sensors, 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
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Paper Chromatography of Pterins [PDF]
Nature, 1949 THE detection and identification of pterins in small quantities was carried out by Schopf and Becker1 in the course of their classical work on this class of pigments. They employed a chromatographic technique using 0·004 N aqueous hydrochloric acid or 0·01 N methyl alcoholic hydrochloric acid solutions on micro-absorption columns of alumina or ...
P. M. GOOD, A. W. Johnson
semanticscholar +5 more sources
Determination of citrate content in specialty paper based on headspace gas chromatography [PDF]
Frontiers in ChemistryA 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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Sensors, 2017 This paper presents a novel method of fabricating an enzymatic biosensor for breath analysis using chromatography paper as enzyme supporting layer and a liquid phase layer on top of screen printed carbon electrodes.
Tatsumi Kuretake +3 more
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PAPER CHROMATOGRAPHY OF STEROIDS [PDF]
, 1950 A method for the paper chromatography of sterols involving impregnated paper has been developed.
Kritchevsky, David, Calvin, M.
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A Review on Radiochemical Purity Analysis Methods of Radiopharmaceuticals
Journal 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
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Impact of Acid Rain with Different pH Values in Monstera deliciosa Plants
Medical 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
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Phenylcarbamate-Modified Paper for Paper Chromatographic Analysis of Hydrophobic Compounds
Technologies, 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
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Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions.
ACS Sensors, 2020 Surface-enhance Raman scattering (SERS) is a powerful technique for sensitive detection, but it normally has difficulty in multicomponent detection in a complex system, especially for simultaneous analysis of mixture of heavy metal ions.
Yuqi Song +7 more
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Paper chromatography of amines [PDF]
Biochemical Journal, 1951 RESP ...
Bremner, J. M., Kenten, R. H.
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