Results 11 to 20 of about 359,140 (301)
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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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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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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Easily Fabricated Microfluidic Devices Using Permanent Marker Inks for Enzyme Assays
In this communication, we describe microfluidic paper analytical devices (μPADs) easily fabricated from commercially available Sharpie ink permanent markers on chromatography paper to colorimetrically detect glucose using glucose oxidase (GOx).
Coreen Gallibu +3 more
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Paper Chromatography for the Radiochemical Control of 90Y for it’s Clinical Uses [PDF]
Our aim in this work was to develop a reliable technique to accurately determine the amount of Yttrium-90 in Strontium-90 used for therapy. Yttrium-90 which can be used for clinical purposes should be in a very high radionuclide purity,therefore a ...
A.R Khanchi +4 more
doaj
Quantitative glass paper chromatography: a microdetermination of plasma cholesterol*
A rapid, sensitive method for the determination of sterols is described. Microgram samples are spotted on impregnated glass fiber paper, chromatographed for 7 minutes, dried, sprayed with sulfuric acid, and charred by heating.
Joseph R. Swartwout +3 more
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Paper Chromatography as Exemplified by Separation of Urocanic Acid and Deaminohistidine
Paper chromatography is an ancient technique to separate low molecular mass compounds based on their distribution between mobile phase (solvent) and stationary phase (cellulose and cellulose-bound water). Paper chromatography has been largely replaced by
Alexander Bogachev
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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
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Blueprint records of thin-layer chromatograms
A new source of blueprint paper for recording thin-layer chromatograms is reported.
Norman S. Radin
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Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source

