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Luer-Lock Syringes 3 mL
3 mL single-use sterile syringes with screw-on (luer-lock) tip — no needle included
In stock2 formats available
Ask about this listing or request its COAFor laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
Each of these sterile, single-use 3 mL syringes ends in a luer-lock fitting — a screw thread rather than a plain push-on cone.
- Storage
- Room temperature, dry, in the sealed wrapper until the point of use
- Available sizes
- Pack of 10 · Box of 100
For research use only. Not for human consumption.
Each of these sterile, single-use 3 mL syringes ends in a luer-lock fitting — a screw thread rather than a plain push-on cone. That thread is why they belong in reconstitution work: a needle or a filter twisted onto it is held mechanically and can't be forced off. A push-on (slip) tip holds only by friction, and friction is exactly what gives way once you push liquid through a 0.22 µm filter membrane and the pressure behind it climbs.
Three millilitres is the right size for handling diluent: drawing bacteriostatic water out of a 10 mL or 30 mL vial and delivering a measured amount into a vial of lyophilised peptide in one controlled stroke. Markings every 0.1 mL suit that job. They aren't intended for measuring the tiny volumes withdrawn from a reconstituted vial afterwards — a 1 mL insulin-type syringe graduated in 0.01 mL does that, and most labs keep both to hand.
Questions about Luer-Lock Syringes 3 mL
Are needles included?
No. You receive the syringe barrels only, each with a screw-type luer-lock tip, and fit needles yourself. That's deliberate: the same barrel can take a wide needle for drawing up, a fine one for dispensing, or a 0.22 µm filter, depending on the step — something a syringe with a built-in needle can't do.
How does luer-lock differ from luer-slip?
Both use the same standard 6% cone, so any needle fits either type. A slip fitting stays on through friction alone; a lock fitting adds a threaded collar that physically holds the needle hub. When pressure builds — during filtration, with very fine needles or thick liquids — a slip joint can pop apart, which is why filtering is done with luer-lock.
Is a 3 mL syringe suitable for drawing from a reconstituted vial?
It's possible but imprecise. The scale is in 0.1 mL steps, and any syringe is least accurate in the lowest fifth of its range. Measure small withdrawals with a 1 mL insulin-type syringe graduated in 0.01 mL; keep the 3 mL barrel for diluent.
Are the syringes sterile — and can I reuse them?
They arrive sterile and are for one use only. The rubber plunger seal isn't designed to survive an autoclave, and a syringe that has held one liquid can carry traces into the next preparation, corrupting analytical data. If a blister pack is torn or has been opened, throw that syringe away.
Do they fit standard 0.22 µm syringe filters?
Yes, as long as the filter has a luer-lock inlet, as most laboratory filters do. Check first: a luer-slip filter will sit on the taper but won't screw on — exactly the case where filtration pressure can force the connection apart.
Which pack size should I choose?
A pack of 10 is enough for the odd reconstitution or a single short study. For a lab that prepares solutions routinely, the box of 100 is cheaper per syringe — and having a good stock means nobody is tempted to reuse one between vials.
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