What is the titration invented by the Danish chemist famous for the concept of pH used for?
Sørensen formol titration The Sørensen formol titration(SFT) invented by S. P. L. Sørensen in 1907 is a titration of an amino acid with potassium hydroxide in the presence of formaldehyde. It is used in the determination of protein content in samples.
Zincke nitration The Zincke nitration is an organic reaction in which a bromine substituent of a phenol or cresol is replaced by a nitro group by treatment with nitrous acid or sodium nitrite. The reaction is a manifestation of nucleophilic aromatic substitution. The reaction is named after Theodor Zincke.