Quantitative XRF Analysis of Trace Barium in Porcelains by Source Excitation

Abstract

Quantitative determination of barium in Chinese porcelains from the seventeenth century to modern times together with some modern non-Chinese porcelains was made with the use of calibration curves obtained by the addition method. All Chinese porcelains from K'ang Hsi (Kangxi, 1662–1722) up to World War II were found to have a barium content between 100 ppm and 130 ppm. For those made after World War II, the barium content varies from 60 ppm to 7000 ppm, and only a few pieces are in the range from 100 ppm to 130 ppm, making it possible to identify most of the modern fake reproductions.

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