Agilent 6495C Triple Quadrupole LC/MS with iFunnel Technology - Data Sheet

Significance of the Topic

The Agilent 6495C triple quadrupole LC/MS represents a state-of-the-art solution for trace-level quantitation and high-throughput screening in various analytical fields. Its combination of sensitivity, robustness and speed makes it indispensable for pharmaceutical development, environmental monitoring, food safety testing and clinical research, where confident detection at femtogram levels and rapid method turnaround are critical.

Objectives and Study Overview

This data sheet aims to present the core performance specifications and design features of the 6495C system. It highlights sensitivity benchmarks, dynamic range capabilities, scan modes, maintenance improvements and control software integration that collectively advance qualitative and quantitative mass spectrometry workflows.

Methodology and Instrumentation

The 6495C employs a triple quadrupole mass analyzer with iFunnel technology to maximize ion transmission and signal-to-noise ratio. Key elements include:

• Octopole ion guide and hyperbolic quadrupoles for precise ion focusing
• Curved, tapered collision cell for efficient fragmentation
• Hexabore capillary with third-generation iFunnel to boost sensitivity and reduce background
• VacShield assembly enabling maintenance without venting the vacuum system
• Agilent MassHunter Workstation for unified control of LC and MS, dynamic and triggered MRM scheduling

Spectrum acquisition spans m/z 5–3,000 with polarity switching under 25 ms. The system supports multiple ionization sources (ESI, nESI, APCI, APPI, MMI) and integrates automated autotune for ion optics optimization.

Key Results and Discussion

Performance benchmarks demonstrate:

• Detection limits below 0.6 fg for reserpine and chloramphenicol (99% confidence)
• Signal-to-noise ratios above 550,000:1 for 1 pg injections in both positive and negative ESI modes
• Mass resolution of 0.7 Da (FWHM) in autotune and 0.5 Da in manual tune, with accuracy within 0.2–0.3 Da across the full mass range
• Dynamic range exceeding six orders of magnitude, enabling quantitation from trace to high-abundance analytes
• Acquisition speeds up to 17,000 Da/s and MRM rates of 500 transitions per second, with capacity for up to 13,500 static or 4,000 dynamic MRMs per method

The robust vacuum system (dual turbomolecular pumps) and high-energy conversion dynode detector ensure stable performance over extended runs.

Benefits and Practical Applications

The 6495C’s ultralow detection limits and extensive dynamic range support diverse applications:

• Pharmacokinetics: accurate quantification of drugs and metabolites at trace levels
• Environmental testing: reliable detection of pollutants in complex matrices
• Food safety: screening of contaminants and residue analysis
• Clinical assays: biomarker validation and targeted metabolomics

Its streamlined maintenance and single-point control reduce downtime and simplify method development.

Future Trends and Potential Applications

Emerging directions include integration with high-throughput robotics for automated sample preparation, expansion of data-driven workflows using AI-powered spectral interpretation and coupling with ion mobility separation for enhanced structural characterization. Advances in microflow and nanoflow interfaces will further lower sample consumption while maintaining sensitivity.

Conclusion

The Agilent 6495C triple quadrupole LC/MS combines unparalleled sensitivity, speed and reliability. Its innovative ion optics and user-friendly software control deliver confidence in trace-level quantitation across demanding analytical scenarios. This platform sets a benchmark for future mass spectrometry developments.

References

• Agilent Technologies. Agilent 6495C Triple Quadrupole LC/MS with iFunnel Technology Data Sheet, Document 5991-4704EN, 2020.