HALO® is a series of (U)HPLC columns based on the core-shell (FusedCore™) technology. The manufacturer of these columns is Advanced Materials Technology™ (AMT), whose founders was outstanding pioneers from the field of high-performance liquid chromatography. AMT is the genuine developer and producer of of packing materials with FusedCore™ technology. The silica-based stationary phases consist of a non-porous core and an porous outer layer, that provides fast separations without excessive backpressure. HALO® columns are available in different particle sizes: 2 μm (core: 1.2 μm), 2.7 μm (core: 1.7 μm), 3.4 μm (only HALO® Protein columns, core: 3.0 μm) and 4.6 μm (core: 3.3 μm) and with various modifications that cover a wide selectivity range. HALO® Bioclass columns have been specially designed for the separation of biomolecules such as proteins, peptides or glycans. HALO® Enviroclass columns are designed for environmental analysis.
Phase name | Modification | Particle size | Pore size | End-capping | C-content | USP | Surface area | pH range | Tmax |
HALO® C30 | C30 | 2.7 µm | 160 Å | + | 4.5% | L62 | 90m2/g | 2.0-9.0 | 60°Ca |
HALO® C18 | C18 | 2 µm | 90 Å | + | 7.5% | L1 | 120m2/g | 2.0-9.0 | 60°Ca |
HALO LPH-C18 | C18 | 2 µm | 90 Å | - | 6.5% | L1 | 120m2/g | 1.0-8.0 | 90°Ca |
HALO® AQ-C18 | C18 | 2 µm | 90 Å | + | 6.5% | L1 | 120m2/g | 2.0-9.0 | 60°Ca |
HALO® PCS-C18 | positively charged surface C18 | 2.7 µm | 90 Å | + | 7.5% | L1 | 125 m²/g | 2.0-7.0 | 60°Ca |
HALO® C8 | C8 | 2 µm | 90 Å | + | 4.8% | L7 | 120m2/g | 2.0-9.0 | 60°Ca |
HALO® Phenyl-Hexyl | Phenylhexyl | 2 µm | 90 Å | + | 6.3% | L11 | 120m2/g | 2.0-9.0 | 60°Ca |
HALO® Biphenyl | Biphenyl | 2.7 µm | 90 Å | + | 7.0 % | L11 | 135m2/g | 2.0-9.0 | 60°Ca |
HALO® PCS Phenyl-Hexyl | positively charged surface Phenyl-Hexyl | 2.7 µm | 90 Å | + | 6.1% | L11 | 125 m²/g | 2.0-7.0 | 60°Ca |
HALO® ES-CN | Diisopropylcyanopropyl | 2 µm | 90 Å | + | 3.5% | L10 | 120m2/g | 1.0-8.0 | 80°Ca |
HALO® PFP | Pentafluorophenylpropyl | 2 µm | 90 Å | + | 5.3% | L43 | 120m2/g | 2.0-9.0 | 60°Ca |
HALO® RP-Amide | C16 Amide | 2 µm | 90 Å | + | 7.3% | L60 | 120m2/g | 2.0-9.0 | 60°Ca |
HALO® HILIC | - | 2 µm | 90 Å | N/A | - | L3 | 120m2/g | 1.0-8.0 | 60°Ca |
HALO® Penta-HILIC | Penta-hydroxy ligand | 2 µm | 90 Å | - | 2.8% | L95 | 120m2/g | 2.0-9.0 | 60°Ca |
a low pH; b high pH
Phase name | Modification | Particle size | Pore size | End-capping | C-content | USP | Surface area | pH range | Tmax |
HALO® Protein ES-C18 | C18 | 2.7 µm | 1000 Å | + | 1.4% | L1 | 15 m2/g | 1.0-8.0 | 90°Ca |
HALO® Protein C4 | C4 | 2.7 µm | 1000 Å | + | 0.6% | L26 | 15 m2/g | 2.0-9.0 | 90°Ca |
HALO® Protein Diphenyl | Diphenylmethyl | 2.7 µm | 1000 Å | + | N/A | L11 | 15 m2/g | 2.0-9.0 | 90°Ca |
HALO® Peptide ES-C18 | C18 | 2 µm | 160 Å | - | 4.0% | L1 | 65 m2/g | 1.0-8.0 | 90°Ca |
HALO® PCS-C18 | positively charged surface C18 | 2.7 µm | 160 Å | + | 5.1% | L1 | 125 m²/g | 2.0-7.0 | 60°Ca 40°Cb |
HALO® Peptide ES-CN | Diisopropylcyanopropyl | 2.7 µm | 160 Å | + | 2.2% | L10 | 90 m2/g | 1.0-8.0 | 90°Ca |
HALO® Peptides Phenyl-hexyl | Phenylhexyl | 2.7 µm | 160 Å | + | 4.7% | L11 | 90 m2/g | 2.0-9.0 | 90°Ca |
HALO® Glycan | Penta-hydroxy ligand | 2.7 µm | 160 Å | - | 3.2% | N/A | 135 m2/g | 2.0-9.0 | 65°Ca |
a low pH; b high pH
Phase name | Modification | Particle size | Pore size | End-capping | C-content | USP | Surface area | pH range | Tmax |
HALO® PAH | C18 | 2.7 µm | 90 Å | - | 9.9% | N/A | 135m2/g | 2.0-9.0 | 60°Ca |
HALO® PFAS | C4 | 2.7 µm | 90 Å | + | N/A | N/A | 135m2/g | 2.0-9.0 | 60°Ca |
HALO® PFAS Delay | Proprietary | 2.7 µm | 90 Å | + | N/A | N/A | 90m2/g | 2.0-9.0 | 60°Ca |
a low pH; b high pH
The HALO® Biphenyl is ready for the challenge of complex samples. Both polar and non-polar pesticides are well resolved with this commonly used test for cannabis.
ADVANTAGES OF THE NEW HALO® BIPHENYL
Peak Identities
1 Daminozide 2 Flonicamid 3 Thiamethoxam 4 Imidacloprid 5 Paclobutrazol 6 Fenhexamid
7 Myclobutanil 8 Bifenazate 9 Dimethomorph Isomer 1 10 Pirotetramat 11 Dimethomorph Isomer 2
12 Spinosad A 13 Spinosad D 14 Trifloxystrobin 15 Spinetoram 16 Pyrethrin II 17 Piperonyl butoxide
18 Pyrethrin I 19 Etoxazole 20 Abamectin A 21 Cypermethrin 22 Bifenthrin 23 Acequinocyl
Tocopherols, a form of vitamin E known for its antioxidant properties, contain many isomers that can be easily separated in the baseline on the HALO® C30 compared to a C18 phase due to the phase's shape selectivity.
PEAKIDENTITIES
TEST CONDITIONS