Hemoglobin variants are mutant forms of hemoglobin in a population (usually of

humans), caused by variations in genetics.Some well-known hemoglobin variants such as

sickle-cell anemia are responsible for diseases, and are considered hemoglobinopathies.It is

the most widely used technique to identify, quantify and separate components of a

mixture. HPLC is widely used for the analysis of constituents of a pharmaceutical actives,

drug products, pesticides, and countless other substances.