What factors affect the Rf value?

Instruments for Gas Chromatography, GC and LC Columns, Chromatography Equipment & Supplies. News: GC CryoTrap sample pump. New. Silent valve for CryoFocus-4. The mass spectrometer can detect and record the relative masses and abundances of ions that are produced from compounds that have been separated using ... As this solvent migrates, it "pulls" the chemical components of the plant extract spot along with it. As with all forms of chromatography, some molecules will ... Dec 21, 2018 ... We present the development of an in situ gas chromatography (GC) technique that, when combined with the sensitive and specific detection of ... A gas chromatograph consists of a flowing mobile phase, an injection port, a separation column containing the stationary phase, a detector, and a data ... Colour photography is more complex than black and white. It is a subtractive colour process. Colour film uses silver halide just like black and white ... The Baker research group utilizes multidimensional separation techniques such as solid phase extractions, liquid chromatography, ion mobility spectrometry, and ... In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components. The mixture is dissolved in a fluid ... While some experience in HPLC or GC or introductory course work in organic chemistry is desirable, it is not necessary. No prior experience in advanced ... Clinical Chemistry, Volume 56, Issue 7, 1 July 2010, Pages 1138–1147, https://doi.org/10.1373/clinchem.2010.143222. Published: 01 July 2010.