Before you start
- Clear and wipe the bench.
- Wash your hands. Gloves are optional; clean hands are not.
- Let cold vials warm for ten minutes. Drawing from a cold vial pulls condensation inside.
Every time you draw
- 01Swab the stopperA new wipe each time. Wipe once, in one direction, and let it dry.
- 02Fresh needleA needle that has touched anything else has touched the whole vial.
- 03Equalise the pressureDraw air equal to the volume you want, inject it into the vial, then draw the liquid. The stopper lasts longer and nothing sprays.
- 04InspectHold the syringe to the light. Cloudiness or particles means stop.
Sharps and disposal
Needles go straight into a sharps bin, never re-capped and never in general waste. Empty vials are glass recycling once the stopper is removed. Solutions past their date are diluted and disposed of as chemical waste under your institution’s rules.
Research use onlyThese products are supplied for laboratory research. They are not for human or animal use, and nothing here is guidance for either.
Calculator
Concentration after reconstitution
Arithmetic only: mass divided by volume. It does not account for the small volume of the powder itself, which is negligible at these quantities.
Research use onlyProducts are supplied for laboratory research and are not for human or animal consumption, diagnosis or treatment. Questions about a batch? Contact the lab with the batch number.