Molecular Biology & Genomics

Ask for the recent service record, the total run count and confirmation that the heated block or flow cell path passes a self test. On a real time cycler, verify the optical channels still calibrate cleanly, and on a sequencer confirm the software licence and reagent supply are still supported. A seller who can show a recent verification run gives you the clearest picture of condition.

Start from the number of samples you process in a typical day and whether that arrives in steady flow or large batches. Manual spin column kits suit low volumes, while automated magnetic bead platforms earn their place once you are running dozens of samples at a time. Check the validated sample types too, since blood, tissue and swabs each need supported chemistry.

Confirm the block or deck accepts your plate format, whether that is 96 well, 384 well or strip tubes, before you buy. Automated systems also depend on specific tips and cartridges, so check those are still in production. Matching consumables to instruments avoids costly adapters and protocol rewrites later.

Most benchtop platforms run from a standard mains supply, but larger sequencers may need a dedicated circuit and stable ambient temperature. Allow bench depth for cabling and airflow, and plan for an uninterruptible power supply on any instrument running long unattended jobs. The listing or seller can confirm the exact power draw and clearance.

Financing is offered on qualifying listings, which lets a laboratory spread the cost of a sequencer or automation platform rather than paying upfront. Eligibility is shown on the individual listing where it applies. You can raise it with the seller when you make your enquiry to see how it fits your budget.