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No problems with phase separation - no formation of emulsions
5-Dimethylthiophenol
What you’ll notice is that absolute concentrations are less important than the ratio of the interfering element to the element of interest
Perfluorotetradecanoic acid
EC HPLC column (analytical), NUCLEOSIL 120-7 CN, 7 µm, 250x4 mm 548-3005 No problems with phase separationThe cyanopropyl phase is able to generate a clearly recognizable different retention behavior compared to purely alkyl functionalized surface modifications. The polarity can be classified as intermediate based on multiple retention mechanisms such as dipole dipole, , and also hydrophobic interactions. Therefore, CN phases show a distinct selectivity for polar organic compounds as well as for molecules containing electron systems (e. g., analytes with