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HALO 2 UHPLC columns are based on Advanced Chromatography Technologies' Fused-Core technology, but with a smaller particle size of 2um.

These columns offer the advantages of sub 2um fully porous particles, but at lower operating pressures. Manufactured with 1um column inlet frits, HALO 2 columns are less susceptible to column plugging than typical 0.2 - 0.5um frits on sub 2um fully porous columns. HALO 2 columns can be used up to 1000 bar (14,500 psi) but will actually produce ~ 20% lower back pressure then most commercially available sub 2um UHPLC columns under the same conditions.

  • Improved productivity with faster analyses
  • Less susceptible to column plugging than sub 2um columns
  • Lower back pressure than non-core sub 2um columns
  • Reduced solvent usage from shorter analysis times

HALO 2 Phase Specifications

HALO 2 PhaseParticle size (um) Pore size (A) Surface area (m2/g) Carbon oad(%)Endcapped pH RangeUSP code
C182901207.5Yes2 - 9L1
C82901204.8Yes2 - 9
RP-Amide2901207.3Yes2 - 9L60
901206.3Yes2 - 9
PFP2901205.3Yes2 - 9
Penta-HILIC2901202.8No2 - 9
HILIC(Silica)290120-No1 - 8L3
ES-CN2901203.5Yes1 - 8L10

Columns are available with 2.1 and 3.0mm i.d. along with the corresponding guard cartridges. High speed and efficiency are achieved with the 20, 30 and 50mm columns, whereas the 75, 100 and 150mm columns are designed for high resolution and high peak capacity.


  • HALO Catalogue
  • HALO 2 Columns brochure

Further technical information:

AMT Hichrom catalogue pages

HALO Phase Overview and HALO 2.7um


HALO BioClass

For other Advanced Materials Technology products

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