Journals Information
Universal Journal of Materials Science Vol. 4(6), pp. 125 - 132
DOI: 10.13189/ujms.2016.040602
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Pb Correction Algorithms for Non-destructive Provenancing of Lead and Tin Glazed Slip Wares
Detlef Wilke *
Dr. Wilke Management & Consulting GmbH, D 30974 Wennigsen, Germany
ABSTRACT
Lead and tin glazed pottery is frequently contaminated with Pb abundances even on the non-glazed surfaces of vessels and fragments. Elevated lead concentrations result in Pb specific matrix absorption and spectral interference effects on several discriminative trace elements - Ga, Rb and Y - which are important for fully non-destructive micro-chemical provenance based on portable x-ray fluorescence (pXRF) analysis. Empirical Lachance-Traill type correction algorithms have been developed by simulating increasing Pb surface abundances on fired clay samples with lead acetate sprayed on 4.0 碌m polypropylene film. For paste surface layers with up to approximately 1 % w/w elemental lead concentrations, full compensation could be achieved, as demonstrated for a representative production waster assemblage of early modern lead glazed slip ware (Weser ware). Since the number of discriminative minor and trace elements in portable and stationary XRF of pottery is at the limit, the development of robust empirical correction algorithms for lead based matrix effects and spectral interferences and the validation of the applied quantification software, respectively, is essential.
KEYWORDS
pXRF Compositional Analysis, Spectral Interference Pb, Ga, Rb, Y, Calibration Spiked Clay Standards
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Detlef Wilke , "Pb Correction Algorithms for Non-destructive Provenancing of Lead and Tin Glazed Slip Wares," Universal Journal of Materials Science, Vol. 4, No. 6, pp. 125 - 132, 2016. DOI: 10.13189/ujms.2016.040602.
(b). APA Format:
Detlef Wilke (2016). Pb Correction Algorithms for Non-destructive Provenancing of Lead and Tin Glazed Slip Wares. Universal Journal of Materials Science, 4(6), 125 - 132. DOI: 10.13189/ujms.2016.040602.