Agilent ZORBAX Rapid Resolution Definition (RRHD) columns with 1.8 μm particles are designed for
optimal performance over the entire operating range of this LC, and are the only commercially available columns that can be used up to the 1200-bar limit. This combination of the 1290 Infinity and ZORBAX RRHD (1.8 μm)  columns forms a total solution that provides new levels of LC performance and flexibility.

The ZORBAX RRHD (1.8 μm) columns exceed the capabilities of the Agilent ZORBAX Rapid Resolution High Throughput (RRHT) columns with 1.8 μm particles, which have a 600-bar limit. New hardware and an improved packing process extend the stability of the ZORBAX RRHD (1.8 μm) columns to higher pressures. The ZORBAX RRHD (1.8 μm) columns are available in short and long lengths, compatible with UHPLC instruments – including the Agilent 1290 Infinity LC and can be used up to 1200 bar to achieve the chromatographic definition needed to separate complex mixtures completely and reliably.  

 MORE PHASES, FOR MORE SELECTIVITY AND FLEXIBILITY

ZORBAX RRHD columns are now available in ten bonded phases, plus HILIC, for the ultimate flexibility in fine-tuning your selectivity to meet the needs of your analysis.

Eclipse Plus C18 is a good place to start for most applications, offering high performance and excellent peak shapes
with acids, bases and neutrals over the pH range 2-9.
Many separations are optimized with bonded phase choices other than C18; the ZORBAX RRHD columns include Phenyl, PAH, and Cyano options for these separations.

The HILIC column is ideal for small, polar analytes by LC/MS. In addition to these choices, we have a range of popular ZORBAX phases. You will achieve the same selectivity using ZORBAX RRHD columns as you would on ZORBAX Rapid Resolution High Throughput (RRHT, 1.8 μm), Rapid Resolution 3.5 μm, and 5 μm columns with the same bonded phase so you are assured of method scalability.