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GRS-FFAP GC Capillary Column

GRS-FFAP GC Capillary Column

GRS-FFAP is a nitroterephthalic acid modified polyethylene glycol (PEG) polymer. This bonded acidic phase is ideal for the analysis of aqueous solutions of free fatty acids as well as fatty acid methyl esters. As with the GRS-CW (and BTR-CW) polyethylene glycol phases, GRS-FFAP is not recommended for the analysis of silylating reagents.

  • Bonded and crosslinked
  • Moderately polar
  • Comparable to FFAP, OV-351, SP-1000
  • Similar phases: DB-FFAP, AT-1000, HP-FFAP, Stabilwax DA, BP-21, CPWax-58CB, Nukol, CPWax-58CB
  • USP Phase Specification: G25

GRS-FFAP, Acid-Modified Polyethylene Glycol (PEG) columns are available in all standard column I.D.’s and lengths. The film thickness ranges are noted in the chart below.

 

GRS-FFAP OPERATING TEMPERATURE RANGE

film thickness temperature range
up to 1.0µm 20° C to 280° C
2.0 to 5.0µm up to 240°C
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