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Column packing characteristics

The nature and characteristic of column packing containing the stationary phase is critical to the column performance and success of the intended applications.13 Common types and characteristics of column packings in use today for small molecule separations are summarized below. Details are discussed further in this section. [Pg.52]

EXAMPLE 15.2 COLUMN PACKING CHARACTERISTICS FROM EXPERIMENTAL DATA... [Pg.544]

Example 15.2 Column packing characteristics from experimental data... [Pg.404]

The field of aqueous SEC is of growing interest and also represents an area of active development by several companies, with Polymer Laboratories included. In this area, contrary to the organic SEC scenario, a variety of polymer chemistries are employed in the preparation of the column packing materials. This fact alone makes the practice of aqueous SEC more difficult than its organic counterpart and requires the suppliers of such columns to offer a good level of technical support to the column user. This chapter outlines the characteristics and applications of PL aquagel-OH aqueous SEC columns. [Pg.350]

Yields higher than about 70% for any of these isonitrile preparations generally indicate incomplete fractionation. The purity of the product may be conveniently checked by proton magnetic resonance spectroscopy. The characteristic 1 1 1 triplet for tert-butyl isocyanide appears at <5 1.45 (chloroform-d). A small upheld peak usually indicates the presence of unreacted amine. Other common contaminants are dichloromethane and chloroform The purity may be determined more accurately by gas chromatographic analysis on a 230 cm. by 0.6 cm. column packed with 10%SE30 on Chromosorb G, 60-80 mesh, at 80°. [Pg.98]

Unger, K.K. (editor)(1979). Silica columns packing procedure and performance characteristics. Porous Silica Journal of Chromatography Library, Volume 16. Elsevier, Amsterdam. pp.169 186. [Pg.176]

See other pages where Column packing characteristics is mentioned: [Pg.15]    [Pg.47]    [Pg.52]    [Pg.53]    [Pg.55]    [Pg.15]    [Pg.47]    [Pg.52]    [Pg.53]    [Pg.55]    [Pg.1385]    [Pg.447]    [Pg.39]    [Pg.257]    [Pg.14]    [Pg.46]    [Pg.77]    [Pg.88]    [Pg.355]    [Pg.447]    [Pg.945]    [Pg.101]    [Pg.67]    [Pg.333]    [Pg.822]    [Pg.823]    [Pg.825]    [Pg.13]    [Pg.38]    [Pg.91]    [Pg.189]    [Pg.211]    [Pg.308]    [Pg.542]    [Pg.608]    [Pg.697]    [Pg.703]    [Pg.971]    [Pg.23]    [Pg.66]    [Pg.202]    [Pg.181]    [Pg.235]    [Pg.239]    [Pg.244]    [Pg.267]    [Pg.445]    [Pg.204]   
See also in sourсe #XX -- [ Pg.52 , Pg.53 , Pg.54 , Pg.55 , Pg.56 ]



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