Metrological role of neutron activation analysis. III. Role of INAA in sampling behavior characterization |
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| Authors: | W Tian Bangfa Ni Yangmei Zhang Lei Cao Pingsheng Wang |
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| Institution: | (1) China Institute of Atomic Energy, P.O. Box 275–50, Beijing 102413, China e-mail: wztian@iris.ciae.net.cn Tel.: +86-10-69357308 Fax: +86-10-69357008, CN |
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| Abstract: | The minimum sample size, usually 100 mg or larger, is often the only information given on certificates of existing certified
reference materials (CRMs) to describe sampling behavior. This value is not only too large for quality control requirements
of microanalysis, but also too general to reflect the strong element-specific nature of the sampling behavior of solid materials.
In this paper, the third and final of the series, we explain the need for CRMs with sampling behavior characterized for individual
elements and describe the unique role of instrumental neutron activation analysis in sampling behaviour characterization.
Received: 19 March 2001 Accepted: 2 October 2001 |
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| Keywords: | Certified reference materials Quality control Sampling constant Instrumental neutron activation analysis |
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