Since 1.7um Fortis columns are the same surface area as their 3um and 5um counterparts, several advantages occur over lower surface area materials:

• Loading of analyte concentration is not compromised
• You can remove backpressure from the system by reducing column length, whilst still maintaining retention
• You can increase resolution

The choice is then open to use the high retention as a resolution benefit or to reduce the column length and therefore system backpresure

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