Kalkulačka rozpouštění peptidů

How to use the peptide calculator

1. Pick your syringe. Insulin syringes are graduated in units, not millilitres. A U-100 1 ml syringe holds 100 units, so one unit equals 0.01 ml.
2. Enter the peptide amount. This is the total mass of lyophilised powder in the vial, printed on the label — for example 5 mg or 10 mg.
3. Enter the bacteriostatic water volume. The volume you reconstitute with sets the concentration. Less water gives a higher concentration and a smaller draw; more water gives a lower concentration and a larger, easier-to-measure draw.
4. Zadejte cílové množství. Kalkulačka jej přepočítá na jednotky stříkačky a zobrazí koncentraci v mg/ml i počet alikvotů této velikosti v lahvičce.

The reconstitution formula

Every reconstitution calculation reduces to two steps. First the concentration, then the volume:

• concentration (mg/ml) = peptide amount (mg) ÷ bacteriostatic water (ml)
• objem k natažení (ml) = cílové množství (mg) ÷ koncentrace (mg/ml)
• syringe units = volume to draw (ml) × 100

Příklad: lahvička 5 mg rekonstituovaná 2 ml bakteriostatické vody dává 2,5 mg/ml. Cílové množství 250 mcg (0,25 mg) je 0,25 ÷ 2,5 = 0,1 ml, tedy 10 jednotek na inzulinové stříkačce U-100.

Handling and storage notes

Add the bacteriostatic water slowly down the inside wall of the vial rather than directly onto the powder, and swirl gently instead of shaking — peptides are fragile and vigorous agitation can degrade them. Store lyophilised vials at room temperature away from light; refrigerate reconstituted solutions at 2–8°C and use them within about 30 days. Refer to the batch Certificate of Analysis for compound-specific stability data.

This calculator is provided as a laboratory reference tool. All products and calculations are for in-vitro research use only and are not intended for human or animal consumption.

Browse our research peptide catalog, or read the Časté dotazy for storage, purity and Certificate of Analysis details.