An elaborate comparison is made between two methods

i.e. NAA （neutron activation analysis） and AFS （atomic fluorescence analysis）

for determining mercury in human hair on the basis of the authors’ experience. It is emphasised that in spite of advantages of NAA such as high sensitivity

accuracy and the multielementanalysis feasibility

AFS method seems more suitable for the determination of both organic and inorganic mercury in human hair samples under some conditions due to itS simplicity

rapidity and low cost.