Low column bleed, compatible with MS applications Good column-to-column consistency Specifications Product Name ChromCore Phenyl-Ether Functional Group Phenyl-ethoxyl Substrate Monodispersed, porous, spherical silica particles Particle Size 5μm Pore Size 120 Å Surface Area 300 m2/g Carbon Load 12%...
Non-linear plots of the logarithms of capacity factors versus the number of oxyethylene units in sulphated oligomers were observed on the bonded amino column in mobile phases consisting of cetyltrimethylammonium bromide, 2-propanol and n -heptane. It is possible to separate sulphated oligomers and...
Column liquid chromatographyEnantiomeric separationChiral stationary phaseCyclodextrinDinitrophenyl etherThe comparisons of five different chiral stationary phases (CSPs) based on 2,6-dinitro-4-trifluoromethylphenyl (DNP-TFM) ether substituted β-cyclodextrin are presented. The five CSPs differ from each ...
When separating a mixture by standard column chromatography, why is it better to change from a less-polar solvent to a more-polar solvent, rather than the reverse? Please explain whether or not the following organic solvents could be used for liquid-li...
The resultant gum was purified by dry-column chromatography (eluant ether:hexane 1:3) t give 3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-difluoromethoxy-5-nitro pyrazole (0.3g) as a yellow solid, m.p. 72.5°-74° C. According to a feature of the present invention, there ...
Our results show that the CR-I (+)-column can be applied for the separation of endogenous DAACPs generated by the post-translational modification.Biochimica et Biophysica Acta (BBA) - Proteins and Proteomicsdoi:10.1016/j.bbapap.2020.140429Izuru Kawamura a b...
The relative proportion of rearrangement products is dependent on the temperature of the capillary column and the substituents on the phenyl ring.J. ZhaiW. YingFz ZhaoYz Chen中国化学快报(英文版)J.J.ZHAI. Detection of claisen rearrangement occurring in allyl phenyl ether by in situ GC/MS[J]....
The use of a reversed‐phase C18 column (250mm×4.0mm and 5m) using a gradient elution system enabled six compounds to be separated simultaneously in a single chromatographic run in less than 12 minutes. The method was successfully validated following ICH guidelines, and it has been demonstrated...
The adducts formed between 2′-deoxyadenosine (dAdo), 2′-deoxycytidine (dCyd) and 2′-deoxyuridine (dUrd) and phenyl glycidyl ether (PGE) were analysed by HPLC and LC—thermospray (TSP)-MS. Good results were obtained on a 10 RP Select B column (12.5 cm × 4 mm I.D.) using 0.1 ...
Column- and gel-chromatography have been used to study the phenylglycidyl ether (PGE) oligomers produced in the presence of dimethylbenzylamine with or without alcohol as additive. The oligomers have been found to possess a trimodal terminal OH-group distribution and to contain also non-hydroxyl ...