Call Now! 888-341-8380

YMC-Pack C8 (Octyl) Analytical Guard Columns

Monomerically Bonded, Fully Endcapped C8

C8 is the most commonly used column type following C18.  YMC-Pack C8 columns are prepared using exhaustive bonding of a monomeric octylsilane to totally porous and spherical silica gels.  The functionalized silica is then treated with an endcapping process which produces a moderate 10% carbon loading on the standard 120Å pore material.

Broad Application Range

C8 columns are well-suited for the separation of many compounds which are too strongly retained on C18 phases or require greater retention than C4.  It is the most versatile reversed-phase column and should be considered a first choice when outfitting a new laboratory.

Guard Cartridges

Analytical Guard Cartridges: Features & Benefits

YMC’s Guard Column Cartridge Systems for HPLC accept cartridges of 1.0, 2.1, 3.0, or 4.0mm inner diameters – in either 10mm or 20mm lengths.  Cartridges are available with a comprehensive selection including all stationary phase chemistries offered by YMC, ensuring compatibility between the guard column and the analytical column.  Assembly is tool-free, simplifying cartridge replacement.

YMC Guard Column Cartridges require the use of a holder, P/N: XPGCHP1 for 10mm length and P/N: XPGCHP2 for 20mm length.

Product Table


Holder required

[vartable id=”7927″]


Holder required

[vartable id=”7953″]


Holder required

[vartable id=”7980″]


Sold Individually

[vartable id=”11216″]

Guard Columns

Analytical Guard Columns: Features & Benefits

YMC’s Guard Columns for HPLC are available in 4.0mm and 5.0mm diameters and come in 10mm lengths.  These guard columns are available with a comprehensive stationary phase selection offered by YMC, ensuring compatibility between the guard column and the analytical column.  Unlike our guard cartridge columns, these guard columns do not require a holder, but do require a small jumper made from either stainless steel or PEEK tubing in order to connect them to the inlet of the analytical column.

Product Table

Please select the desired particle size to view a list of products.


No holder required

[vartable id=”7997″]


[vartable id=”8007″]

    Questions or Concerns?
    Contact Us Today