by GL Sciences
Inertsil NH2
Many commercially available NH2 ( amino ) phases are modified in order to increase stability to hydrolysis. However, this modification often leads to anomer resolution in sugar analysis.
Inertsil NH2 columns are bonded in a manner which does not lead to anomer resolution, because the primary amino groups are not modified.
This leads to more accurate qualitative and quantitative results.
The Inertsil 3-series represents a major advance in performance over the original Inertsil 2-Series. Inertsil 3-Series phases, including ODS-3, ODS-3V, ODS-P, ODS-EP, C8-3, Ph-3, CN-3, NH2, Diol, and SIL-100Å, are based on a purer, higher surface area silica which is specially manufactured to provide maximum bonded phase coverage.
The result is a series of columns which provide excellent peak shapes using simple eluents while operating at low pressure
Inertsil phases are known to provide excellent results and long column life at pH levels of 9 or 10.
However, optimum column life will likely be achieved by operating at a pH of between 2 and 7.5.
| Vendor | GL Sciences | pH stability from | 2.0 |
| Brand | Inertsil NH2 | pH stability to | 7.5 |
| Modifification | Silica/Amino | Max Pressure | 2900 |
| Mode | Normal-Phase | Surface Area | 450 |
| Particle Size | Carbon Load, % | 8.0 | |
| Length | Endcapped | No | |
| Internal Diameter | Operating Temperature | 60 | |
| Pore size | 100 |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Princeton Chromatography Inc. | PrincetonSPHER AMINO-300 | Normal-Phase | Silica/Amino | 10.0 mm | 250 mm | 10.0 μm | 300 Å | On request |
| WATERS | Spherisorb NH2 | Normal-Phase | Silica/Amino | 4.6 mm | 250 mm | 5.0 μm | 80 Å | On request |
| ES Industries | Polar Bonded Phase 100 Amino | Normal-Phase | Silica/Amino | 4.6 mm | 250 mm | 10.0 μm | 100 Å | On request |
| RESTEK | Ultra | Normal-Phase | Silica/Amino | 3.2 mm | 250 mm | 5.0 μm | 100 Å | On request |
| LabHut | Cronusil-S NH2 | Normal-Phase | Silica/Amino | 4.0 mm | 250 mm | 5.0 μm | 80 Å | 263.45 |
| WATERS | Spherisorb NH2 | Normal-Phase | Silica/Amino | 2.0 mm | 100 mm | 5.0 μm | 80 Å | On request |
| Teknokroma | Tracer EXTRASIL Amino | Normal-Phase | Silica/Amino | 4.6 mm | 200 mm | 3.0 μm | 80 Å | On request |
| LabHut | Cronusil-S NH2 | Normal-Phase | Silica/Amino | 3.0 mm | 200 mm | 5.0 μm | 80 Å | 210.05 |
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