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Octadecylsilyl-silica

Li, Z., Rutan, S. C., and Dong, S., Wetting of octadecylsilylated silica in methanol-water eluents, Anal. Chem., 68, 124, 1996. [Pg.192]

Test 3. According to the general method (2.2.27), examine by thin-layer chromatography using a suitable octadecylsilyl silica gel as the coating substance. [Pg.13]

Wirth, M.J. andBurbage, J.D., Adsorbate reorientation atawater(octadecylsilyl)silica interface. Ana/. Chem., 63, 1311, 1991. [Pg.299]

Masuda et al. have reported the supercritical fluid chromatography of retinol palmitate and tocopherol acetate using an octadecylsilyl silica gel column with ethanol-modified carbon dioide as the mobile phase [43]. Both retinol and tocophenol eluted within 5 min. The method was applied to the determination of these compounds in an ointment formulation. The method was found to be linear for both retinol and tocophenol from 0.5 to... [Pg.139]

Chromatographic column a stainless steel column, 0.25 m long and 4.6 mm internal diameter, packed with base-deactivated octadecylsilyl silica for chromatography R (5 pm particles). The column is maintained at a temperature of 40°C. [Pg.182]

The chromatographic procedure may be carried out using a stainless steel column (20 cm x 4 cm) packed with octadecylsilyl silica gel for chromatography (10 tm) (Nucleosil, Cig is suitable). Use as the initial mobile phase 0.01 M sodium heptane sulfonate in a mixture of 55 volumes of water and 45 volumes of acetonitrile and as the final mobile phase 0.01 M sodium... [Pg.13]

Radiochemical Purity. Tc-sestamibi is described in the European Pharmacopeia (Council of Europe 2005). Thin-layer chromatography using reverse-phase silica gel plates (octadecylsilyl-silica gel) and a mixture of acetonitrile, methanol, ammonium acetate, and tetrahydrofuran as solvent system is recommended for the separation of free 99rnTc-sodium pertechnetate (Rf =0.9) and reduced, hydrolized " Tc-activity (Rf=0-... [Pg.240]

Column 95 x 0.5 Japan Spectroscopic SC-01 (5 jim octadecylsilyl silica in a PTFE tube)... [Pg.510]

Powell, W.S. Rapid extraction of arachidonic acid metabolites from biological samples using octadecylsilyl silica. Methods Enzymol. 1982, 86, 467-477. [Pg.1926]

Miyabe, K., and Suzuki, M., Adsorption characteristics of octadecylsilyl-silica gel in gaseous systems, AlChE J., 39(11), 1791-1798(1993). [Pg.1039]

Physico-chemical properties of the phenols lipophilicity constants were evaluated by reversed-phase chromatography using octadecylsilylated silica (Lichrosorb RP 18, E. Merck) (Butte et al. 1981). pK values were determined spectrophotometrically (Albert and Serjeant 1984). [Pg.47]

See other pages where Octadecylsilyl-silica is mentioned: [Pg.5]    [Pg.15]    [Pg.27]    [Pg.100]    [Pg.100]    [Pg.307]    [Pg.522]    [Pg.524]    [Pg.929]    [Pg.929]    [Pg.7]    [Pg.393]    [Pg.358]    [Pg.176]    [Pg.2188]    [Pg.58]    [Pg.261]    [Pg.354]    [Pg.311]    [Pg.2146]    [Pg.2146]    [Pg.7]    [Pg.569]    [Pg.152]    [Pg.83]    [Pg.622]    [Pg.625]    [Pg.1602]   
See also in sourсe #XX -- [ Pg.14 , Pg.57 , Pg.58 , Pg.59 , Pg.60 , Pg.85 , Pg.89 , Pg.145 , Pg.171 , Pg.180 , Pg.212 , Pg.236 , Pg.239 ]



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Octadecylsilyl-bonded silica

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