Quadrex 007-1, 15m x 0.25mm ID, 0.25µm film, ea.

Descripción

SKU: 007-1-15-0.25F

007-1 PHAT™ Phase Columns.

In addition to the standard range of column configurations offered with the 007-1 phase type, our unique coating technology allows us to extend the functional range of columns coated with the 007-1 phase by the application of very thick films. For example, films up to 3.5 microns on 0.10mm I.D. fused silica and 18.0 microns on 0.53mm I.D. fused silica are now possible. These PHAT Phase™ thick film columns are ideal for low molecular weight analyses previously performed on packed columns.

Advantages of PHAT PHASE™ fused silica capillary columns include:
Greater sample size for trace analyses of very volatile compounds.
Increased retention of volatile compounds leading to higher elution temperatures.

GC analyses of gases and other types of low molecular weight compounds have been traditionally accomplished on packed columns with heavy loadings or adsorbent type columns. More recently, porous layer open tubular (PLOT) capillary columns have been utilized in the separation of low molecular weight applications despite the drawbacks in using these types of columns such as sample adsorption and bead migration within the column.

The non-polar 007-1-dimethylpolysiloxane phase, which separates compounds by boiling point, is probably the most commonly used phase type in GC. Bonding and cross-linking this general-purpose GC phase increases resistance to degradation caused by flushing, large solvent injections, and nonvolatile deposition. The 007-1 phase offers excellent efficiency and thermal stability. In addition, this non-polar phase is less susceptible to oxidation and hydrolysis than phases with more polar functional groups.