Journal of AOAC International 1994-01-01

Rapid abrasion test to indicate lead on the surface of ceramicware.

S P Dolan

Index: J. AOAC Int. 77(3) , 718-22, (1994)

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Abstract

A rapid abrasion test (RAT) was developed for screening ceramicware for Pb. A Pb-sensitive chromogen (rhodizonic acid) reacts to form a persistent colored complex, indicating the presence of Pb. RAT takes 2-5 min to complete; a positive test is easily discernible. RAT, which provides only qualitative information, is useful for screening large numbers of ceramicware items for the presence of Pb at > or = 0.05 microgram/mL.

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