Methods of Routine Haemoglobinometry in Childhood: Evaluation of Copper Sulphate Densitometry

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Abstract
The van Slyke falling drop specific gravity measurement of whole blood was correlated with hemoglobin concentration in 94 venous bloods and 502 capillary bloods of children aged 5 months to 6 years. This method was evaluated as an estimate of hemoglobin and as a screening test for anemia in comparison with acid hematin hemoglobinometry, photoelectric colorimetry of cyanmethemoglobin, and physical examination. It was found less accurate than photoelectric colorimetry but more accurate than the other methods. In addition the van Slyke method was found to be rapid, cheap, and easy to teach to semi-skilled personnel. It may be recommended as a routine in mass child health supervision.