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Conventional silica gel matrix separation packing
high performance Very narrow particle distribution A wide range of pore size (30-2500 Å) and particle size (10-2000μm) can be selected 25 years of customer experience Davisil® is world-renowned for its high purity. Amorphous silica gel has excellent mechanical and structural characteristics, diverse specifications, stable production, and reliable quality. It is an ideal choice for HPLC, SPE, Flash chromatography, and large-scale industrial purification applications. high performance The chemical and structural properties of silica gel are not only optimized for chromatographic applications, but all processes from raw materials to finished products are also strictly controlled, which makes silica gel stand out from the competition. Larger than the surface, high loading capacity
High purity silica gel to reduce interference and pollution
Davisil®Silica gel can separate Schiff bases from reaction mixtures containing both aldehydes and ammonia and other by-products. Obtaining such excellent separation performance and loading capacity data under the pilot test conditions enables it to be enlarged to a column with a diameter of 300mm, and 90g of pure product can be obtained for each single loading of the column. Global technical support Grace provides advice and assistance to customers at any time, and can even do preliminary laboratory tests for process scale-up. As long as you need, our business representatives will arrange these supports and services for you. Not only that, we can also provide you with special customized services according to your requirements.
All comparative data are from 60 Å, 40-63μm silica gel Davisil®The wide range of silica gel specifications can meet your comprehensive requirements for performance and economy. The selection guide table on the next page can help you find the most suitable specifications. ● You can choose normal phase non-bonded silica gel or various bonded phase silica gels (C18, amino, glycol, cyano) according to your needs ● The clear pore size distinction (30-2500 Å) can be used for the separation of various materials with different molecular weights. ● Available in different packaging specifications from 500g to several tons Predictable zoom We now produce hundreds of tons of chromatographic silica gel each year. We have been committed to large-scale production, so the page can help you achieve large-scale production. During the amplification process, the performance of the chromatographic silica gel remains unchanged and will not change with the increase of the particle size.
The same kind of silica gel with different particle sizes has a balanced capacity factor and selectivity factor to facilitate predictable amplification of the solute molecules of the mixture. The polar bonding group of Davisil® normal phase silica gel has a hydrophilic effect, and the more polar components are The reserved value is larger. Therefore, silica gel is suitable for purification:
Unparalleled product reliability More than 25 years of production experience has made Davisil® chromatography silica gel one of the most widely used fillers in the world.
Each production plant has ISO-9001 quality certification system certification, and strict quality control is carried out from raw materials to finished products to ensure reproducibility between batches. For a certain application, there are many kinds of suitable fillers. The chart below is a common guide for chromatography packing materials. You only need to select the appropriate fillers in order according to the solubility, molecular weight, pressure tolerance, and separation difficulty of the sample. Note: In addition to Davisil® fillers, Grace also offers a variety of fillers of other brands and properties.
* Water content (H2O%) can be customized according to customer requirements Unbonded silica gel
American Society for Testing and Materials (ASTM) or U.S. Environmental Protection Agency (EPA) method 1Grade 923ASTM D1319: Fluorescence Indicating Adsorption Method (FIA) for the detection of petroleum products ASTM D2549: Aromatic or non-aromatic hydrocarbons in oil EPA 1664 method: n-hexane extraction method 2Grade 12ASTM D2007: Rubber additives or crude oil processing 3Grade 15PA 601/624 Method: Purge halogenated hydrocarbons
Bonded silica gel
The use of Davisil silica gel thin layer (TLC) made the method development easy Davisil silicone TLC board
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