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| COSMOSIL® SL-II-PREP is an extremely high performance packing
material for preparation with similar characteristic to the 5SL-II for normal
phase chromatography. In SL-II-PREP the high purity silicagel raw material is
treated during the process to achieve ultra purity. This way SL-II-PREP
excellently separates compounds with carbonyl, phenolic or hydroxy groups,- a task
used to be very difficult so far. We highly recommend the use of the SL-II
series for preparation after HPLC analysis with 5SL-II. |
| *All chromatograms shown below are obtained with silicagel packed into stainless
steel columns.
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Material characteristics
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75SL-II-PREP |
140SL-II-PREP |
| Silica gel |
high purity porous spherical silica |
| Average particle size |
75µm |
140µm |
| Average pore size |
approx.120Å |
| Specific surface area |
approx.300m2/g |
| Application |
open column chromatography,
flash column chromatography |
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Influence of particle size on peak the shape
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The SL-II-PREP is available in three sizes: 5 and 75, 140µm (particle diameter). The sharpness of the peak is different depending on the particle size. However, the elution behavior remains the same.
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Ordering information |
| Product name |
Packing Size |
Code No. |
| COSMOSIL® 75SL-II-PREP |
100g |
38012-64 |
| 500g |
38012-35 |
| 1kg |
38012-51 |
| COSMOSIL® 140SL-II-PREP |
100g |
38013-54 |
| 500g |
38013-25 |
| 1kg |
38013-41 |
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| (C)2004 Nacalai Tesque, Inc. E-mail: info.intl@nacalai.co.jp |