| abstract |
A reagent for measuring the hemoglobin concentration and counting the number of leukocytes in a blood sample, which contains at least one of a quaternary ammonium salt or a pyridinium salt, having a concentration capable of hemolyzing erythrocytes in the blood and denaturing hemoglo-bin and at least one of cationic, nonionic or amphoteric surfactants or an oxidant capable of oxidizing heme in hemoglobin, said reagent being capable of dividing leuko-cytes into two or three fractions, for example, a fraction of lymphocytes, a fraction of monocytes, eosinophils and basophils, and a fraction of neutrophils. |