Results 11 to 20 of about 335,927 (147)
Study on migration mechanism of sweeteners in tipping paper
Shipin 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
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Paper Chromatography as Exemplified by Separation of Urocanic Acid and Deaminohistidine
Bio-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
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Detection of steroids in paper chromatography [PDF]
Archives of Biochemistry and Biophysics, 1952 Summary o 1. Methods for the detection of steroids in paper chromatography have been described and evaluated for 31 compounds. 2. A new method of detection of steroids involving phosphomolybdic acid has been reported. 3. A method using silicotungstic acid has been extended to cover many new compounds.
Kritchevsky, David, Kirk, Martha R.
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Pendipa, 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
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Sensing 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
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International Journal of Medicine and Medical Research, 2016 Передумови. Органічні кислоти є сполуки аліфатичних або ароматичних порядків, які широко поширені в рослинному і мають широкий спектр біологічної активності.
S. M. Marchyshyn +6 more
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Quantitative paper chromatography of lipids [PDF]
Experientia, 1956 Ein qualitatives Verfahren zur papierchromatographischen Trennung von Fettsauren und Derivaten liess sich zur quantitativen Bestimmung ausbauen. Die Methode hat eine Fehlergrenze von etwa ± 5% und ist unabhangig von den funktionellen Gruppen der Molekule. Sie ist fur gesattigte Di- und Triglyceride nicht direkt anwendbar.
Joanne L. Gellerman, Hermann Schlenk
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Química Nova, 2007 The presence of illicit drugs such as cocaine and marijuana in US paper currency is very well demonstrated. However, there is no published study describing the presence of cocaine and/or other illicit drugs in Brazilian paper currency.
Enrico Di Donato +2 more
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Revised paper: Neonicotinoids as a potential threat to honey: Development of liquid chromatography methods for their determination [PDF]
Journal on Processing and Energy in Agriculture, 2017 There is an increasing interest on neonicotinoid residues determination in honey samples because they are banned by European Union. Their determination is based on liquid chromatography analytical methods and, therefore, the aim of this study was to ...
Jovanov Pavle +6 more
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Biomolecules & Biomedicine, 2005 Qualitative-quantitative structure of plant pigments in wild plants Malva silvestrs L. and Malva moschata L. (Malvaceae), which were collected in 20 locations in Sarajevo area and surroundings, was tested during spring and summer in 2003.
Sulejman Redžić +2 more
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