HB estimation is not done by
Some methods of hemoglobin estimation are : Drabkin's method Sahli's method Hemoglobincyanide (HiCN) Method Blood Gas Analyzer (BGA) Whereas Wintrobe's method and Westergren's method: for ESR determination.
Drabkins method
Sahli's method
Spectrophotometry
Wintrobe method
Blood Physiology