1 M Bicine Buffer Calculator

Scale separate 1 M Bicine-NaOH stock recipes at pH 8.0 or 8.5 while preserving each reviewed preset as an independent formulation.

Select a reviewed preset and enter the final volume to prepare.

Recipe for 100 mL of 1 M Bicine-NaOH pH 8.0
ReagentFormulaAmount or action
Bicinefree compound16.32 g
Sodium hydroxideAdjust experimentally to pH 8.0.
Purified waterAfter pH adjustment, bring the total solution volume to 100 mL. Do not add 100 mL of water; add water only until the total solution reaches 100 mL.

How to prepare 1 M Bicine-NaOH pH 8.0

  1. Select pH 8.0 or pH 8.5 and add the calculated Bicine to approximately 70–80% of the selected final volume of purified water.
  2. Stir until the Bicine dissolves completely.
  3. Add NaOH gradually until the selected target pH is reached.
  4. Bring to the selected final volume, mix thoroughly, and verify the final pH.

About This Buffer

Bicine is a zwitterionic biological buffer suitable for biochemical work under mildly alkaline conditions. This calculator provides separate 1 M Bicine stock formulations at pH 8.0 and 8.5. Both use the same Bicine concentration, while the selected final pH is established experimentally with NaOH.

Common questions

Why do the pH 8.0 and pH 8.5 presets use the same Bicine mass?

Both presets are 1 M Bicine, so the Bicine amount per final volume is the same. The difference is the experimentally adjusted pH.

Why are the two pH values separate presets?

Each pH value is tied to its own reviewed preparation record. The calculator does not interpolate between pH values.

What Bicine molecular weight is used?

The mass basis uses Bicine with a molecular weight of 163.17 g/mol.

Sources and review notes

The source for the currently selected preset appears first. Recipe quantities remain tied to the cited article location.

View sources for all presets

1 M Bicine-NaOH pH 8.5

Source location: Preparation — 1 M Bicine adjusted to pH 8.5; independent use; PubChem molecular weight.

Preparation method: Mass derived from the published concentration