TURKISH JOURNAL OF MEDICAL SCIENCES, cilt.39, sa.5, ss.775-781, 2009 (SCI-Expanded)
Aim: The ALAD enzyme activity ratio, which is highly sensitive to and specific for lead inhibition, can be used to diagnose lead-exposed individuals, but a reference value for it has not yet been established. Therefore, we aimed to establish a reference value for the ALAD activity ratio by improving each analytical step of the colorimetric method described by Mitchell et al.