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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Ann Hematol. 2017 Nov 16;97(2):239–246. doi: 10.1007/s00277-017-3182-8

Fig. 1. Color spectrum of the point-of-care hemoglobin assay.

Fig. 1

The chemical reaction between hemoglobin, hydrogen peroxide, and 3,3’,5,5’-tetramethylbenzidine was designed to identify moderate and severe anemia with a hemoglobin range of 2.5 to 9.1 g/dL