Agilent Eclipse Plus Ph-Hex,4.6x50mm,1.8u,600bar 959941-912

The ZORBAX RRHT Eclipse Plus Phenyl‑Hexyl column (Agilent part 959941‑912) is a UHPLC reversed‑phase analytical column designed to provide phenyl‑hexyl selectivity for aromatic compounds. It measures 4.6 x 50 mm with 1.8 µm fully porous particles and is rated to 600 bar, allowing high‑efficiency UHPLC separations. Agilent describes it as effective for compounds with aromatic rings (for example nitro‑aromatics and substituted benzenes) where π–π interactions enhance retention and selectivity.

Key Features:

• Separation mode: Reversed Phase
• Chemistry/Phase: Eclipse Plus Phenyl‑Hexyl (Ph‑Hex)
• Particle size: 1.8 µm (fully porous)
• USP classification: L11
• Dimensions: 4.6 mm ID × 50 mm length
• Pressure rating: 600 bar (UHPLC)
• pH range: 2–8; pore size: 95 Å

Advantages:

• Phenyl‑hexyl phase designed for improved retention and selectivity of aromatic compounds via π–π interactions (manufacturer stated).
• 1.8 µm particle size combined with 600 bar rating enables high‑efficiency, fast UHPLC separations on compatible instruments.
• Broad usable pH range (2–8) and specified maximum temperatures provide flexibility and robustness for diverse methods.
• USP L11 designation and Agilent/ZORBAX manufacturing support method reproducibility and compatibility with established reversed‑phase protocols.