GammaBond Alumina is a family of exceptionally stable alumina-based HPLC columns designed for extreme pH applications to provide high efficiency and unique selectivity. GammaBond Alumina is manufactured by bonding a polymer to a highly stable porous spherical 5 μm alumina particle. This proprietary manufacturing process yields polymercoated packings with the same high efficiency as traditional silica columns, but with all the advantages of alumina. The ES Industries’ GammaBond reversed phase columns may be used with any mobile phase from pH 1.3 to pH 12, and any desired buffer system or additive. GammaBond Alumina is available in two stationary phase types: GammaBond RP-1 and RP-8. Gammabond RP-1 is a low load polybutadiene coated alumina. This phase is used for USP method L-29. GammaBond RP-8 is an alumina based polysiloxane polymer to which n-octyl groups are appended. GammaBond Alumina (RP1 or RP8): pore size = 80° A; pH range = 1.3-12.

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Column Type	Stainless Steel Glass Lined Stainless Steel PEEK ™ Ultra High Pressure Steel
Column Length	1 cm 2.5 cm 3 cm 3.5 cm 5 cm 6 cm 7.5 cm 10 cm 12 cm 12.5 cm 15 cm 20 cm 25 cm 30 cm 50 cm 60 cm
Column Diameter	0.5 mm 0.75 mm 45 mm 3.2 mm 3.9 mm 1.0 mm 2.0 mm 3.0 mm 4.0 mm 4.6 mm 9.6 mm 23 mm 7.5 mm 50 mm 4.2 mm 75 mm 100 mm 6.0 mm 30 mm 15 mm
Particle Size	5 u
Pore Diameter	80 A
Fitting Type	Inverted Female Compression Cartridge or Capillary Titanium Frits
Phase	GammaBond Alumina RP1 ARP1 GammaBond Alumina RP8 ARP8