COSMOSIL CNT series are ideal for separation of soluble carbon nanotubes based on sizes. COSMOSIL CNT series are packed with hydrophilic group-bonded silica packing material. The columns are specially designed to avoid adsorption of carbon nanotubes to silica support and thus ensure high resolution and maximum recovery of carbon nanatubes. COSMOSIL CNT series are available in three different pore sizes, 300 Å, 1000 Å and 2000 Å, respectively.

Features of COSMOSIL CNT:

– Size-based separation of soluble carbon nanotubes
– Hydrophilic group coating silica packing material
– Three types of pore sizes (300 Å, 1000 Å, 2000 Å)
– High durability

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MATERIAL CHARACTERISTICS
CNT-300
CNT-1000
CNT-2000
Silicagel
high purity porous spherical silica
Average particle size
5µm
Average pore size
approx. 300Å
approx. 1000Å
approx. 2000Å
Stationary phase
hydrophilic group (neutral)
pH Range
2-7.5
Pressure
15 MPa and below

Size-based separation of carbon nanotubes

COSMOSIL CNT columns offered improved separation for DNA wrapped carbon nanotubes by connecting three columns with different pore sizes.
DNAchart
Condition
ColumnCOSMOSIL CNT-300 7.5 mm I.D. x 300 mm
COSMOSIL CNT-1000 7.5 mm I.D. x 300 mm
COSMOSIL CNT-2000 7.5 mm I.D. x 300 mm
Mobile phase0.5 mmol/l EDTA, 200 mmol/l NaCl, 40 mmol/l Tris-Tris HCl(pH 7.0)
Flow rate1.0 ml/min
Temperature40 °C
DetectionUV 260 nm (x 1), 350 nm (x 20)
SampleDNA-wrapped CNT (CNT-DNA)
Injection vol.500 µl
Pressure8.1 MPa
Sample courtesy of Prof. H. Shinohara, Department of Chemistry & Institute for Advanced Research, Nagoya University

AFM (Atomic Force Microscope) Analysiss

The data below show analysis by AFM of CNT length of each fraction from the sample on the previous page.
3charts

Cosmosil CNT Column

ItemCatalogPrice ($U.S.)Buy
CNT-1000 Guard Column 7.5 mm I.D. x 50 mm 091-9661 $659.00 Add to cart
CNT-1000 Packed Column 7.5 mm I.D. x 300 mm 091-9751 $2,575.00 Add to cart
CNT-2000 Guard Column 7.5 mm I.D. x 50 mm 091-9841 $659.00 Add to cart
CNT-2000 Packed Column 7.5 mm I.D. x 300 mm 091-9931 $2,575.00 Add to cart
CNT-300 Guard Column 7.5 mm I.D. x 50 mm 091-9481 $659.00 Add to cart
CNT-300 Packed Column 7.5 mm I.D. x 300 mm 091-9571 $2,575.00 Add to cart