🛠️ Invention or technique

Dumas method

Método Dumas

Date
1826 · confidence high
Place
Paris, Île-de-France, France
Credited to
Jean-Baptiste Dumas
Field
Matter & energy

What it is

The Dumas method is an elemental analysis technique for the quantitative determination of nitrogen in chemical substances, now automated and used as the standard for measuring protein content in food.

What it led to

  • quantitative determination of protein in food
  • gradual replacement of the Kjeldahl method
  • automation of elemental analysis in analytical chemistry
  • nutritional labeling standards

Links

Sources✓ verified 2026-09-28