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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Preparation and evalution of limestone reference material for a proficiency test

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2009, v.22 no.1, pp.82-91




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Abstract

Preparation and evaluation of the limestone samples for a proficiency test using domestic limestone have been performed. We have used statistical method for evaluation of the XRF and instrumental analysis results. We have found that there were some outliers from XRF and ICP-OES instrumental analysis results for each sample. After removal of 5 outliers among the 50 samples we could obtain the homogeneous samples which have within a reliability of 95% from a statistical analysis result

keywords
limestone reference material, RRT samples, statistical analysis


Reference

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