Sepax CNT SEC Phases

Utilizing proprietary surface technologies, the Sepax CNT SEC phases are made of specially coated porous silica materials. The silica support has high purity and enhanced mechanical stability. The Sepax CNT SEC phases have been innovatively and specially designed to ensure highest resolution and maximum recovery for the separation of nanotubes, such as carbon nanotubes, and nanorods. The Sepax proprietary surface technology allows extremely high column-to-column reproducibility and provides exceptional phase stability. The uniform, spherical particles of the Sepax CNT SEC phases have a nominal pore size at 300 Å, 500 Å, 1,000 Å, and 2,000 Å with the pore volume at ca. 1.0 mL/g. The Sepax CNT SEC phases are packed with a proprietary slurry technique to achieve uniform and stable packing bed density for maximum column efficiency. Typical applications for the Sepax CNT SEC columns are the separations of nanotubes in aqueous buffer solutions as well as normal organic solvents, such as acetonitrile, methanol and THF.

SepaxNanofilm SEC Technical Specifications

Product	Pore size	Particle size	CNT Dimension	pH	Temp. limitation	Applications
CNT SEC-300	300 Å	5, 10 µm	Length 1-100 nm Diameter 1-5 nm	2-8.5	100 °C	Carbon nanotubes, nanorods, and nanoparticles
CNT SEC-500	500 Å	5, 10 µm	Length 25-250 nm Diameter 1-10 nm	2-8.5	100 °C	Carbon nanotubes, nanorods, and nanoparticles
CNT SEC-1000	1,000 Å	5, 10 µm	Length 100-500 nm Diameter 1-25 nm	2-8.5	100 °C	Carbon nanotubes, nanorods, and nanoparticles
CNT SEC-2000	2,000 Å	5, 10 µm	Length 300-1000 nm Diameter 1-50 nm	2-8.5	100 °C	Carbon nanotubes, nanorods, and nanoparticles

• High efficiency and resolution
• Extremely stable in high salt solution
• Great batch-to-batch reproducibility
• High temperature resistance (up to 100 °C)
• High recovery and easy for scale-up
• Wide pH application range 2 - 8.5

• Separation of carbon nanotubes by length
• Separation of nanorods by length
• Separation of nanoparticles by diameter
• Analytical, semi-preparative, and preparative separation

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Carbon nanotubes are manufactured with random diameter from a few of nanometers to ca 1,000 nm and variable diameters. An uniform length of carbon nanotubes is crucial for their applications in electronics. Figure below shows an AFM image of a single-walled carbon nanotube wrapped with DNA molecules. The DNA wrapped CNT is soluble in water so that the separation can be effectively achieved.

Separation of DNA wrapped carbon nanotubes

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Notes:
To avoid clogging the column, all samples and solvents including buffers should be filtered through 0.45 µm or 0.2 µm filters before use. The CNT SEC columns are compatible with aqueous mobile phase, organic solvent, or a mixture of organic and water, such as methanol or acetonitrile and water. The CNT SEC columns are incompatible with cationic species, such as cationic detergents, polymers and proteins. Always degas the mobile phase. A simple way for degassing is to sonicate it for 5 minutes under water pumped vacuum.

Sepax CNT SEC-300 Part Number Particle Size Pore Size ID×Length Price 205300-4603 5 µm 300Å 4.6×30mm $275.00 205300-4605 5 µm 300Å 4.6×50mm $365.00 205300-4625 5 µm 300Å 4.6×250mm $850.00 205300-4630 5 µm 300Å 4.6×300mm $950.00 205300-7805 5 µm 300Å 7.8×50mm $375.00 205300-7815 5 µm 300Å 7.8×150mm $785.00 205300-7825 5 µm 300Å 7.8×250mm $950.00 205300-7830 5 µm 300Å 7.8×300mm $1,095.00 Sepax CNT SEC-500 Part Number Particle Size Pore Size ID×Length Price 205500-4603 5 µm 500Å 4.6×30mm $275.00 205500-4605 5 µm 500Å 4.6×50mm $365.00 205500-4625 5 µm 500Å 4.6×250mm $850.00 205500-4630 5 µm 500Å 4.6×300mm $950.00 205500-7805 5 µm 500Å 7.8×50mm $375.00 205500-7815 5 µm 500Å 7.8×150mm $785.00 205500-7825 5 µm 500Å 7.8×250mm $950.00 205500-7830 5 µm 500Å 7.8×300mm $1,095.00 Sepax CNT SEC-1000 Part Number Particle Size Pore Size ID×Length Price 211000-4603 5 µm 1000Å 4.6×30mm $295.00 211000-4605 5 µm 1000Å 4.6×50mm $395.00 211000-4625 5 µm 1000Å 4.6×250mm $850.00 211000-4630 5 µm 1000Å 4.6×300mm $950.00 211000-7805 5 µm 1000Å 7.8×50mm $375.00 211000-7815 5 µm 1000Å 7.8×150mm $785.00 211000-7825 5 µm 1000Å 7.8×250mm $950.00 211000-7830 5 µm 1000Å 7.8×300mm $1,095.00 Sepax CNT SEC-2000 Part Number Particle Size Pore Size ID×Length Price 212000-4603 5 µm 2000Å 4.6×30mm $325.00 212000-4605 5 µm 2000Å 4.6×50mm $425.00 212000-4625 5 µm 2000Å 4.6×250mm $975.00 212000-4630 5 µm 2000Å 4.6×300mm $1,075.00 212000-7805 5 µm 2000Å 7.8×50mm $430.00 212000-7815 5 µm 2000Å 7.8×150mm $900.00 212000-7825 5 µm 2000Å 7.8×250mm $1,090.00 212000-7830 5 µm 2000Å 7.8×300mm $1,195.00 Sepax CNT SEC-300 Part Number Particle Size Pore Size ID×Length Price 205300-10005 5 µm 300Å 10.0×50mm $575.00 205300-10010 5 µm 300Å 10.0×100mm $895.00 205300-10015 5 µm 300Å 10.0×150mm $1,150.00 205300-10025 5 µm 300Å 10.0×250mm $1,550.00 205300-10030 5 µm 300Å 10.0×300mm $1,750.00 205300-21205 5 µm 300Å 21.2×50mm $690.00 205300-21210 5 µm 300Å 21.2×100mm $1,350.00 205300-21215 5 µm 300Å 21.2×150mm $1,995.00 205300-21225 5 µm 300Å 21.2×250mm $2,790.00 Sepax CNT SEC-500 Part Number Particle Size Pore Size ID×Length Price 205500-10005 5 µm 500Å 10.0×50mm $575.00 205500-10010 5 µm 500Å 10.0×100mm $895.00 205500-10015 5 µm 500Å 10.0×150mm $1,150.00 205500-10025 5 µm 500Å 10.0×250mm $1,550.00 205500-10030 5 µm 500Å 10.0×300mm $1,750.00 205500-21205 5 µm 500Å 21.2×50mm $690.00 205500-21210 5 µm 500Å 21.2×100mm $1,350.00 205500-21215 5 µm 500Å 21.2×150mm $1,995.00 205500-21225 5 µm 500Å 21.2×250mm $2,790.00 Sepax CNT SEC-1000 Part Number Particle Size Pore Size ID×Length Price 211000-10005 5 µm 1000Å 10.0×50mm $575.00 211000-10010 5 µm 1000Å 10.0×100mm $895.00 211000-10015 5 µm 1000Å 10.0×150mm $1,150.00 211000-10025 5 µm 1000Å 10.0×250mm $1,550.00 211000-10030 5 µm 1000Å 10.0×300mm $1,750.00 211000-21205 5 µm 1000Å 21.2×50mm $950.00 211000-21210 5 µm 1000Å 21.2×100mm $1,750.00 211000-21215 5 µm 1000Å 21.2×150mm $2,250.00 211000-21225 5 µm 1000Å 21.2×250mm $2,950.00 Sepax CNT SEC-2000 Part Number Particle Size Pore Size ID×Length Price 212000-10005 5 µm 2000Å 10.0×50mm $660.00 212000-10010 5 µm 2000Å 10.0×100mm $1,030.00 212000-10015 5 µm 2000Å 10.0×150mm $1,320.00 212000-10025 5 µm 2000Å 10.0×250mm $1,780.00 212000-10030 5 µm 2000Å 10.0×300mm $1,950.00 212000-21205 5 µm 2000Å 21.2×50mm $1,050.00 212000-21210 5 µm 2000Å 21.2×100mm $1,950.00 212000-21215 5 µm 2000Å 21.2×150mm $2,550.00 212000-21225 5 µm 2000Å 21.2×250mm $3,350.00

Analytical CNT SEC-300, 5µm CNT SEC-500, 5µm CNT SEC-1000, 5µm CNT SEC-2000, 5µm Prep/Semi-prep CNT SEC-300, 5µm CNT SEC-500, 5µm CNT SEC-1000, 5µm CNT SEC-2000, 5µm