18740-80190: an Insert Designed for Precise Manual Injections in Medical Laboratories
The Agilent 18740-80190 model is an injection insert for split injectors used in gas chromatography (GC) systems. Designed for manual protocols, this consumable is commonly used in biomedical, clinical or pharmaceutical analysis laboratories requiring a high level of control over the sample introduction phase.
This model is made of non-deactivated glass, with a suitable internal diameter and a capacity of 800 µL. It is equipped with a cup-shaped cavity that improves sample deposition and promotes even distribution in the chromatographic column. The complete absence of glass wool eliminates the risk of retention or degradation of sensitive compounds, which is essential in medical contexts where the analysis of trace compounds or fragile metabolites is common.
Used in manual injection, this insert is particularly suitable for configurations where automation is not possible or deliberately excluded. It guarantees optimal compatibility with standard GC systems, while allowing for quick and easy maintenance. Its design also reduces the formation of hot spots and ensures good thermal balance during sample introduction.
Thanks to its straight geometry and controlled volume, the 18740-80190 insert is the solution of choice for professionals seeking to optimise the reproducibility of results in rigorous medical analyses, while limiting adsorption or interference phenomena.
The use of this insert is part of an effort to standardise analytical protocols, particularly in laboratories subject to strict regulatory constraints. It allows you to work with consistent injection volumes, reducing critical sample losses, particularly in toxicological or pharmacokinetic analyses.
Its compatibility with conventional injectors makes it an easy-to-integrate consumable that requires no hardware modifications. Its careful manufacture and the absence of reactive materials ensure reliable results even on complex matrices. The 18740-80190 model thus meets the high requirements of modern medical chromatography.
