Results 11 to 20 of about 359,301 (251)

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

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

Quantitative glass paper chromatography: phosphatidyl choline and sphingomyelin

open access: yesJournal 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   +1 more source

Easily Fabricated Microfluidic Devices Using Permanent Marker Inks for Enzyme Assays

open access: yesMicromachines, 2016
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
doaj   +1 more source

Paper Chromatography for the Radiochemical Control of 90Y for it’s Clinical Uses [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2013
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*

open access: yesJournal of Lipid Research, 1960
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
doaj   +1 more source

Paper Chromatography as Exemplified by Separation of Urocanic Acid and Deaminohistidine

open access: yesBio-Protocol, 2013
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
doaj   +1 more source

Pengembangan Media Praktikum PCT (Paper Chromatography Techniques) Berbasis Android dengan QR Code Technology pada Materi Pemisahan Campuran

open access: yesPendipa, 2022
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
doaj   +1 more source

Blueprint records of thin-layer chromatograms

open access: yesJournal of Lipid Research, 1965
A new source of blueprint paper for recording thin-layer chromatograms is reported.
Norman S. Radin
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

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