Autosampler Trays and Needle Seats

Chrom Tech provides genuine Agilent autosampler trays, needle seats, and workflow accessories engineered for precise, reliable vial handling across a wide range of LC and LC/MS applications. As an authorized Agilent distributor, we supply only manufacturer-validated components that preserve instrument integrity and ensure consistent sample introduction.

Agilent vial trays and drawers are available in multiple capacities to support varying vial formats, sample volumes, and throughput needs. Each tray is designed for secure positioning, smooth autosampler motion, and dependable injection accuracy—helping laboratories maintain uptime, reduce variability, and streamline routine workflows.

Genuine Agilent components from an authorized distributor.
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Identify verified Agilent-compatible LC pump, autosampler, and detector parts by selecting your instrument model.
Key Definitions â–¶
Autosampler Tray
A precision-engineered holder that positions vials for automated injection. Proper tray alignment supports reproducible needle travel and minimizes sample disturbance.
Needle Seat
The sealing interface where the autosampler needle rests between injections. Genuine Agilent seats help maintain leak-free operation and reduce contamination carryover.
Vial Drawer
A removable tray system for high-capacity autosampler configurations. Drawer design influences vial count, supported sample volumes, and overall workflow throughput.
Injection Cycle
The complete motion sequence of vial positioning, needle engagement, sample aspiration, and delivery into the LC flow path.
Sampling Position
The mapped vial location used by the autosampler to identify and access individual samples. Accurate positioning helps ensure correct vial selection and uninterrupted workflows.
Frequently Asked Questions â–¶
How do I choose the correct vial tray for my autosampler?
Tray selection depends on vial format (1.5 mL, 2 mL, 4 mL, etc.) and the capacity required for your sequence. Chrom Tech lists only trays verified for compatibility with your specific Agilent autosampler model.
When should I replace a needle seat?
Replace needle seats when leaks occur, carryover increases, or the autosampler reports sealing or pressure errors. Genuine Agilent seats help maintain proper alignment and leak-free performance.
Are Chrom Tech autosampler parts genuine Agilent?
Yes. Chrom Tech is an authorized Agilent distributor and supplies only certified, factory-tested autosampler components for full instrument compatibility.
Why do sample positions matter?
Autosamplers rely on precise coordinates to locate each vial. Incorrect tray mapping can cause missed injections, errors, or workflow interruptions.
Can mixing tray types affect injection performance?
Yes. Trays must match vial size and autosampler geometry. Mixing formats can lead to misalignment and inconsistent needle positioning.