Laboratory Tools
Reconstitution & concentration calculator
An arithmetic tool for laboratory preparation records. Enter the mass in the vial and the volume of solvent added, and the calculator returns the resulting concentration, the volume that corresponds to a given target mass, and how many aliquots that vial yields.
Inputs
Selecting an item fills in its labelled mass. Any value can be overridden below.
1 mg = 1000 µg. This is the mass you intend to withdraw per measurement, defined by your own experimental design.
Graduated syringe reference
On a U-100 scale one graduation equals 0.01 ml, regardless of barrel size.
Result
Concentration
2.50
mg / ml
Concentration
2,500
µg / ml
Aliquots per vial
20.0
withdrawals
Volume for 250 µg
0.100 ml
= 10.0 graduations
Reference table at this concentration
| Mass | Volume | Graduations |
|---|---|---|
| 10 µg | 0.004 ml | 0.4 |
| 25 µg | 0.010 ml | 1.0 |
| 50 µg | 0.020 ml | 2.0 |
| 100 µg | 0.040 ml | 4.0 |
| 250 µg | 0.100 ml | 10.0 |
| 500 µg | 0.200 ml | 20.0 |
| 1000 µg | 0.400 ml | 40.0 |
Values are calculated from the figures entered above and assume complete dissolution of the labelled mass in the stated solvent volume. Displacement by the solid is not modelled.
Selected catalogue item
Purity figures are published only after the signed third-party report for that batch has been received and uploaded. Where a result is not shown, the report is not yet available.
Solvent
Bacteriostatic Water 10 ml
Laboratory consumable · €6,00 · one 10 ml vial covers 5 preparations at 2 ml.
What this tool calculates
Concentration is mass divided by volume. Draw volume is target mass divided by concentration. Aliquot count is total mass divided by target mass. Nothing beyond that arithmetic is inferred.
What it deliberately does not do
It does not recommend a solvent volume, a target mass, a frequency or an application. Those parameters belong to the experimental design of the receiving laboratory.
Accuracy limits
Figures assume the labelled mass fully dissolves and that solid displacement is negligible. Verify concentration analytically where the experiment depends on it.
All products are supplied strictly for in-vitro laboratory research and analytical use. Not for human or veterinary use, not a drug, food or cosmetic, and not intended to diagnose, treat, cure or prevent any condition. This calculator is provided as a unit-conversion aid for laboratory record keeping and does not constitute preparation, handling or application guidance.