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818755 Supelco

TSKgel® Octadecyl-4PW HPLC Column

phase C18 (octadecyl), L × I.D. 15 cm × 2 mm, 7 μm particle size

Synonym: TSKgel® Reversed Phase HPLC Column (Polymer-based)

  •  eCl@ss 32110501



Related Categories Analytical/Chromatography, HPLC, HPLC & FPLC Columns for Biopolymer Separations, TSKgel HPLC Columns, TOYOPEARL Bulk Media & Accessories, TSKgel Octadecyl-4PW Columns (500 Å pores),
material   stainless steel hardware
mfr. no.   Tosoh, 18755
extent of labeling   1 meq/mL ligand density (estimate)
parameter   salt concentration
  0-100% organic solvent
  0.22 mL/min flow rate
  100 bar max. pressure
  5-50 °C temperature
application(s)   HPLC: suitable
L × I.D.   15 cm × 2 mm
matrix   polymer particle platform
matrix active group   C18 (octadecyl) phase
particle size   7 μm
pore size   500 Å
operating pH   2 - 12
mode of chromatography   Reversed phase


General description

Polymer-based particles for reversed-phase (RP) HPLC generally have two benefits over silica-based particles: They are more tolerant of high and low pH operating conditions and they do not have the silanol interactions that cause peak tailing of some basic analytes. Also, some silicas have an intrinsic metal content that may cause chelation problems with sensitive biomolecules, leading to poor recovery. Polymeric TSKgel columns come in C18 and phenyl functional groups and a range of particle porosities. Fast kinetics and quantitative protein recovery at submicrogram loading are characteristic of nonporous resin-based TSKgel Octadecyl-NPR columns.
• Octadecyl-2PW particles have 125Å pores
• Octadecyl-4PW particles have 500Å pores
• Phenyl-5PW RP particles have 1000Å pores
• Octadecyl-NPR particles are nonporous

Highly cross-linked polymethacrylate base material of TSKgel Octadecyl-4PW provides excellent stability in high pH buffer systems and can withstand rigorous cleaning with either acid or base. The 500Å pore allows for anaylsis of proteins up to 200kDa while the particle size offerings allow for analytical, semi-preparative and preparative scale separations.

Physical form

Shipped in 60% methanol - 40% water.

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Legal Information

TSKgel is a registered trademark of Tosoh Corporation

Price and Availability

All labs need water
Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Protocols & Articles

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842160 TSKgel® Octadecyl-4PW Guard Cartridge, phase C18 (octadecyl), L × I.D. 1 cm × 2 mm, 7 μm particle size, pkg of 3 ea

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