Thermo Finnigan Octopole Assembly for LCQ Duo

The Thermo Finnigan 97000-20133 is a high-precision Octopole Assembly designed for the ion transmission path of the LCQ Duo Mass Spectrometer. This assembly consists of eight parallel conductive rods arranged in a precise radial geometry, functioning as a radio frequency (RF) ion guide. The octopole is responsible for the efficient confinement and transport of ions from the atmospheric pressure ionization (API) source through the vacuum stages to the ion trap analyzer. By utilizing a shallow effective potential well, the 97000-20133 ensures maximum ion transmission efficiency and minimizes ion loss, which is critical for maintaining high sensitivity in LC-MS analysis.

Technical Performance and Design

• Enhanced Ion Confinement: The eight-rod configuration provides a higher-order multipole field compared to quadrupoles, resulting in a "flatter" potential well that facilitates the transport of a broad range of m/z ratios with minimal discrimination.

• RF Field Stability: Engineered to maintain precise mechanical tolerances, ensuring a uniform RF field that prevents ion scattering and beam divergence within the vacuum manifold.

• Vacuum-Compatible Materials: Constructed from high-purity stainless steel and specialized insulators designed for ultra-high vacuum (UHV) environments, minimizing outgassing and maintaining system pressure integrity.

• Precision Alignment: The assembly includes integrated mounting brackets and contact points designed for exact alignment with the skimmer and subsequent ion lens assemblies.

Product Specifications

• Manufacturer: Thermo Finnigan (Thermo Scientific)

• Part Number: 97000-20133

• Instrument Compatibility: LCQ Duo Ion Trap Mass Spectrometer.

• Component Type: RF Octopole Ion Guide / Ion Optics Assembly.

• Material: High-grade stainless steel and ceramic/PEEK insulators.

Key Benefits for Laboratory Maintenance

• Sensitivity Restoration: Replacing a contaminated or pitted octopole assembly can resolve issues related to signal drift, poor ion transmission, and decreased signal-to-noise ratios.

• Direct OEM Replacement: Ensures that the RF offset and frequency tuning remain within the original factory-validated parameters for the LCQ Duo platform.

• Durable Construction: Built to withstand the rigors of continuous ion bombardment and the aggressive solvent environments typical of high-throughput LC-MS applications.

Used; excellent condition.

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