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Analytical / Chromatography > HPLC & LPLC > Columns > Discovery  > C18 & C8 HPLC Columns
HPLC

C18 & C8 HPLC Columns
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Ordering Information
 
Discovery C18 and C8 HPLC Columns
 
Classic reversed-phases for all general-purpose applications
• Excellent peak shape and efficiency compared to competitive columns
• Classic reversed-phase retention and selectivity
• Excellent, no-bleed character for LC-MS applications
• C18 is generally more retentive than the C8
 
  Properties     C18     C8
Bonded Phase:   Octadecylsilane, endcapped   Octylsilane, endcapped
Silica:   Spherical, high purity (Fe <20; NA <7; Ca <7;
Ti <1; AI <1; Mg <1ppm)		   Spherical, high purity (Fe <20; NA <7; Ca <7;
Ti <1; AI <1; Mg <1ppm)
Particle Size:   5µm   5µm
Pore Size:   180(Å)   180(Å)
Surface Area:   200m2/g   200m2/g
%C:   ~12%   ~7.5%
Coverage:   ~3µmoles/m2   ~3.4µmoles/m2
    C18 structure   C8 structure
 
 
 
chromtograms

Ordering Information
5µm Discovery HPLC Columns
ID(mm) Length(cm) C18 Cat. No. C8 Cat. No.
NEW! 2.1             2 577507-U 577501-U
NEW! 2.1             3 577508-U 577502-U
2.1   5 50494721 59352-U21
2.1 10 569220-U 569420-U
2.1    12.5 569229-U 569424-U
2.1 15 50495521 59353-U21
NEW! 3.0             2 577509-U 577503-U
NEW! 3.0             3 577510-U 577504-U
3.0   5 504947-30 59352-U30
3.0 10 569221-U 569421-U
3.0    12.5 569230-U 569425-U
3.0 15 504955-30 59353-U30
3.0 25 504971-30 59354-U30
4.0   5 504947-40 59352-U40
4.0 10 569222-U 569422-U
4.0    12.5 569231-U 569426-U
4.0 15 504955-40 59353-U40
4.0 25 504971-40 59354-U40
NEW! 4.6             2 577511-U 577505-U
NEW! 4.6             3 577512-U 577506-U
4.6   5 504947 59352-U
4.6 10 569223-U 569423-U
4.6    12.5 569232-U 569427-U
4.6 15 504955 59535-U
4.6 25 504971 59354-U
10.0 25 569224-U —
21.2 25 569226-U —
5µm Discovery Validation Packs*
ID(mm) Length(cm) C18 Cat. No. C8 Cat. No.
2.1 5 55700-U21 55710-U21
2.1 10 569800-U 569804-U
2.1 15 55702-U21 55712-U21
4.6 5 55700-U 55710-U
4.6 10 569801-U 569805-U
4.6 15 55702-U 55712-U
4.6 25 55704-U 55714-U
* Packs include 3 columns, each from a different lof of bonded phase.
2cm Supelguard Cartridges with Discovery Packings
    C18 C8
  Description 2.1mm ID 3.0mm ID 4.0mm ID 2.1mm ID 3.0mm ID 4.0mm ID
  5µm Particle Size
 
  2 Pack
505188 59576-U 505137 59588-U 59580-U 59590-U
 
  Kit triangle
505161 59575-U 505129 59587-U 59579-U 59589-U
 
For 4.0mm ID or 4.6mm ID analytical columns
triangle Kit includes cartridge, stand-alone holder, tubing, 2 nuts and ferrules.
How to Contact Supelco
 
Inside the USA:
Phone: 800-247-6628
  or 814-359-3441
fax: 800-325-5052
email: techservice@sial.com
 
Outside the USA: click here
         
   
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