Polar end capped ether linked phenyl chromatography column;
Different selectivity from ordinary reverse phase C18 or C8 columns;
Improve the peak shape of alkaline and acidic compounds and have excellent peak shape for aromatic compounds;
Embedding polar groups into the carbon chains of the inverted stationary phase improves the selectivity for strong polar and strong alkaline compounds, while the polar groups shield the silanol group effect, effectively improving the peak shape.
Particle size: 5 μ m, pore size: 110 Å, specific surface area: 340 m2/Carbon content: 11% pH: 1.5-9.0 * End capping: Single tail capping
Content testing of pseudoephedrine hydrochloride and ephedrine hydrochloride in ephedra
Standard product spectrum
Spectral diagram of ephedra samples
Samples: (1) pseudoephedrine hydrochloride, (2) ephedrine hydrochloride;
Chromatographic column: Venusil®XBP Polar-Phenyl，5 μm，4.6×250 mm；
Mobile phase: 1.16% ammonium acetate solution (pH=4.0): Methanol=94:6;
Wavelength: 257 nm;
Injection: 20 μ L