Can I Really Enjoy the Benefits of the Latest LC Column Technology?

Importance of Advanced LC Column Technology

Liquid chromatography underpins pharmaceutical development, environmental testing and quality control. Innovations in column design can increase laboratory throughput, reduce costs and extend column lifetime.

Study Objectives and Overview

This note evaluates superficially porous particle columns, particularly Agilent Poroshell 120 in 2.7 µm and 4 µm formats, to satisfy organizational goals (higher capacity, faster time-to-market) and laboratory demands (resource efficiency, productivity, cost reduction).

Methodology and Used Instrumentation

Performance was assessed through pressure drop and van Deemter analysis across HPLC and UHPLC systems, comparing SPP to fully porous and totally porous particles under a range of flow rates, mobile phase pH (2.5–11.5) and detection modes.

• Columns: Poroshell 120 EC-C18, SB-C18, HPH-C18, Bonus-RP, SB-Aq, EC-C8, PFP, EC-CN, Phenyl-Hexyl, HILIC (2.7 µm and 4 µm)
• Systems: Agilent 1200/1290 Infinity HPLC and UHPLC modules
• Detectors: UV at 210–254 nm, LC-MS compatibility at high pH
• Accessories: 2 µm inlet frits and guard columns for sample protection

Main Findings and Discussion

SPP columns deliver high efficiency—90 percent of sub-2 µm performance—at half the backpressure, enabling use on conventional HPLC (≤400 bar) and UHPLC (≤600 bar). The 4 µm variant achieves resolution comparable to 1.8 µm columns at lower pressure and produces sharp peaks at flow rates up to 2 mL/min. High-pH stable HPH-C18 maintains retention and selectivity up to pH 12.5. Guard columns significantly extend analytical column life when processing complex samples. ROI analysis demonstrated annual savings of about US $43 000 and a 160 percent yearly payback for accelerated methods.

Benefits and Practical Applications

• Universal instrument compatibility: run fast methods on existing HPLC/UHPLC hardware
• Enhanced resolution and throughput: shorter run times without sacrificing performance
• Extended column lifetime: robust particle chemistry and routine use of 2 µm frits reduce replacements
• Cost savings: lower solvent consumption and maintenance overhead improve laboratory efficiency

Future Trends and Opportunities

Broader adoption of SPP technology is expected in routine and high-throughput labs. Development of specialized stationary phases will address challenging analytes. Combined with automated sample preparation and high-pH MS workflows, SPP columns will enhance sensitivity in proteomics and metabolomics applications.

Conclusion

Agilent Poroshell 120 superficially porous columns provide an optimal balance of efficiency, reduced pressure and durability, enabling laboratories to maximize existing equipment, accelerate analyses and lower costs while maintaining or improving chromatographic resolution.

References

Data derived from Agilent application notes (2016) with no separate formal literature list provided.