成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

Rt^®-Alumina BOND/CFC Columns （fused silica PLOT）

       Improved inertness for halogenated compounds.

       Highly selective alumina-based column, separates most CFCs.

       High retention and capacity for CFCs.

Product Name:

Rt-Alumina BOND/CFC

Temp. Limits:

to 200°C

Length:

30m

Internal Diameter:

0.53mm

df （µm）:

10μm

1. Highly selective for C1-C5 hydrocarbons; separates all unsaturated hydrocarbon isomers above ambient temperatures. 2. Reactivity of aluminum oxide stationary phase is minimized so that column response for polar unsaturates, such as dienes, is optimized. Column sensitivity or response ensures a linear and quantitative chromatographic analysis for these compounds. 3. Strong bonding prevents particle generation. The column can be used in valve switching operations, without release of particles that can harm the injection and detection systems. 4. The Rt^®-Alumina BOND column is stable up to 200 °C. If water is adsorbed on the column, it can be regenerated by conditioning at 200 °C. Full efficiency and selectivity will be restored. 5. High capacity and loadability give exceptionally symmetric peaks; ideal for volatile hydrocarbon separations at percent levels, as well as impurity analyses at ppm concentrations.

Guaranteed Reproducibility Each Rt^®-Alumina BOND column is tested with a hydrocarbon test mix to ensure proper phase thickness and selectivity. 1,3-Butadiene is used to calculate k （capacity factor）, which is a measure of phase thickness. Selectivity is measured using retention indices for propadiene and methyl acetylene. The resolution of trans-2-butene and 1-butene is also verified. To measure coating efficiency, plates per meter are checked using 1,3-butadiene. Extensive testing assures reproducible retention times and predictable flow behavior column-to-column.

       Improved inertness for halogenated compounds.

       Highly selective alumina-based column, separates most CFCs.

       High retention and capacity for CFCs.

The alumina adsorbent is ideal for retaining halogenated compounds, especially CFC （chlorinated flourocarbons, freons）. It offers high selectivity, allowing a wide range of CFC isomers to be resolved at above ambient temperatures. The Rt^®-Alumina BOND/CFC column is thoroughly deactivated to reduce the reactivity of alumina. Even though there is still some residual reactivity for some mono- or di-substituted halogenated hydrocarbons, the majority of these compounds can be accuray quantified from main stream processes or in impurity analyses.