Agilent G2855-20555 Crimp Nut for UltiMetal Plus Metal Ferrules
The G2855-20555 is a crimp nut designed by Agilent to provide a robust and inert connection in capillary analytical circuits, particularly for MS (mass spectrometry) interfaces. This accessory is used in conjunction with UltiMetal Plus flexible metal ferrules, which are known for their high thermal stability (up to 450°C) and chemical inertness. This fastening system guarantees a perfect seal without resinification, while ensuring excellent resistance to repeated thermal cycles.
The G2855-20555 nut is recommended for connections involving capillary interfaces such as Deans Switches, Ultimate Union fittings or QuickSwap MS interfaces. In medical laboratories, where CPG/SM analyses are used to detect pathological markers, pharmaceutical compounds or metabolic residues, the integrity of the sampling circuit is an essential criterion. Using this nut prevents oxygen or moisture leaks, which can compromise reproducibility or create ghost peaks.
It is compatible with different sizes of UltiMetal Plus ferrules (from 0.4 mm to 0.8 mm internal diameter) and maintains precise alignment in the fitting thanks to pre-crimping, thereby limiting installation errors. All these features contribute to improving the reliability of the analytical flow and the robustness of the results, which is particularly crucial in high-sensitivity medical analyses. Its mechanical design also limits the risk of deformation or degradation of the fitting when properly tightened.
This component is part of Agilent's optimised systems for low dead volume analytical connections, ensuring the best possible inertia in complex analyses such as toxicology, pharmacology or biological quality control.
It is therefore a strategic choice for healthcare professionals seeking to guarantee consistent performance in their critical analytical procedures.
