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Dynamic Adsorbents’ Alumina Judged Best in Industry

News Release

Dynamic Adsorbents’ activated alumina and silica gel products have been found by independent laboratory analysis to be demonstrably superior due to a lower amount of fines compared with major competitors and with the least amount of trace metal impurities compared with all other competitor’s products.

When announcing the results, DAI President Dr. Mark Moskovitz said, “Our line of adsorbents offer precisely what chromatographers have come to expect from all DAI products – the best alumina, the best silica and the best bonded phase packing material available for academic or industrial usage.”

A recent study by an independent research laboratory found that DAI’s neutral and basic Alumina products were the industry leaders in their categories, surpassing competitors by almost every measure in consistency, purity and performance.

Dr. Moskovitz elaborated further, “What’s important in these test results is that it shows that our Alumina has the greatest surface area per gram of adsorbent and has the lowest trace metal impurities in the industry. All chromatographers are looking to achieve high purity fractions and, to obtain these kind of results, you need superior resolution in your alumina or silica. Using the best materials leads to higher compound recovery, saving significant costs and time as fewer fractions require purity analysis. Results depend on the quality of the adsorbents and DAI makes the best alumina and silica in the industry. We are very proud of these results.”

DAI bulk and DynaFLASHTM cartridge alumina are manufactured to achieve high resolution separations with injections of complex mixtures.

  • DAI provides the widest range of alumina and silica products for the widest range of uses.

  • DAI has the ability to customize products for unique applications and with 24 hour delivery in most cases.

  • DAI’s alumina can be purchased in bulk quantities or in the DynaFLASHTM family of pre-packaged, disposable cartridges.

  • DynaFLASHTM cartridges provide tight particle and pore size distribution and a low level of fines. Each cartridge is a pre-compressed, disposable flash column containing either superior premium  grade alumina or premium grade silica.

  • DynaFLASH™ Cartridges are compatible with the Isco, Jones, or Biotage Flash Systems.

Independent Lab Results Comparing DAI Alumina to Competitors'

 

COMPARATIVE STATEMENTS- ALUMINA NEUTRAL [60-200UM]

Parameter Brand E Brand I Brand B Brand C DAI
Appearance White to off white  White to off white Off White White to off white  White to off white 
pH 6.8 6.7 7.2
7.5
7.3
Density gm/lit 840-890 780-840 820-930 900-940 860-940
Soluble extract by water 0.26 0.22 0.29 0.26 0.24
Pore dia A 40-60 50-60 65-70 40-60 50-60
Surface area m2/gm 150-165 140-160 130-140 120-145 150-160
Boiling point  2974oC 2645oC 2944oC 2670oC 2977oC
Filtration rate  0.54ml/min 0.28ml/min 0.36ml/min 0.63ml/min 0.39ml/min
           
Particle Size Assay (%)          
Coarser 16.3 9.4 17.4 15.5 12.9
Between 68.4 72.6 67.9 66.8 71.4
Finer 15.3 18 14.7 17.7 15.7
           
Chemical Composition          
Al2O3 assay (By diff) 90% 93% 90% 92% 93%
Cl 0.034% 0.032% 0.047% 0.038% 0.029%
Na2O 0.620% 0.067% 0.073% 0.058% 0.048%
Fe2O3 0.063% 0.068% 0.077% 0.062% 0.037%
SiO2 0.054% 0.057% 0.063% 0.049% 0.038%
           
Dated 3 Oct 2008          
Sample Volume -150 grams          

COMPARATIVE STATEMENTS- ALUMINA BASIC [60-200UM]

Parameter Brand E Brand I Brand B Brand C DAI
Appearance Off White /Pink White to off white  white/pink  White to off white  White to off white
pH 10.2 9.5 9.8 9.6 9.8
Density 890 920 860 910 920
Soluble extract by water 0.34 0.44 0.49 0.47 0.39
Pore diameter 40-60 50-60 65-70 40-60 50-60
Surface area m2/gm 140-155 155-162 158 138 158
Boiling point  2964oC 2477oC 2933oC 2657oC 2962oC
Filtration rate  0.58ml/min 0.34ml/min 0.44ml/min 0.73ml/min 0.47ml/min
           
Particle Size Assay (%)          
Coarser 17.9 11.7 12.3 15.9 14.9
Between 69.4 71.3 69.8 70.7 69.9
Finer 12.7 17 17.9 13.4 15.2
           
Chemical Composition           
Al2O3 assay (By diff) 92% 93% 92% 93% 93%
Cl 0.430% 0.053% 0.058% 0.047% 0.037%
Na2O 0.540% 0.059% 0.083% 0.073% 0.042%
Fe2O3 0.570% 0.062% 0.072% 0.057% 0.047%
SiO2 0.062% 0.062% 0.059% 0.042% 0.049%
           
Dated 29 Sept 2008          

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Dynamic Adsorbents, Inc. PO Box 80402 Atlanta, GA 30366-0402  770-817-0123  Toll-Free:  1-866-314-SORB (7672) FAX:  770-455-4380 info@dynamicadsorbents.com