- Plínio, o Velho
- Berzélius
- Schönbein
- Matteucci
- Runge
- Goppelsroeder
- Tswett
--- Tswett - Experimento
- Gottfried Kränzlin
- Theodor Lippmaa
- Edgar Lederer
- Richard Kuhn
- Dhéré
- Palmer
- Tiselius & Claesson
- Moore & Stein
- Partridge
- Martin & Singe