REAGENT FOR LEAD CONCENTRATION DETERMINATION AND METHOD OF DETERMINING LEAD CONCENTRATION

摘要

A reagent for lead concentration determination with which the accurate lead concentration in a sample solution can be safely and easily determined even when the solution contains zinc ions; and a method of determining a lead concentration with the reagent. The reagent for lead concentration determination comprises (A) a porphyrin derivative and (B) at least one member selected among ethylenediamine-N,N"-dipropionic acid, ethylenediamine-N,N"-diacetic acid, and 1,6-diaminohexane-N,N,N",N"-tetraacetic acid.