Performance of IPEN-CNEN/SP neutron activation analysis laboratory for microelement determinations in proficiency testing.

The performance of Neutron Activation Laboratory, IPEN ? CNEN/SP, was evaluated for the Ca, Fe, K, Mn, Na and Zn determinations in animal feed samples for ruminants through a proficiency test (PT) program. This PT program is organized by Embrapa Cattle Southeast to evaluate laboratories that analyze animal feed samples. Considering the fractions of satisfactory z-scores (%) of evaluated analytes to determine the laboratories performance, the general performance indicator obtained by IPEN - CNEN/SP ranged from 90 to 95% of the satisfactory results during the period of participation in the evaluation, four years.

Bibliographic Details

Main Authors:	ARMELIN, M. J. A., SOUZA, G. B. de, NOGUEIRA, A. R. de A., SAIKI, M.
Other Authors:	MARIA JOSÉ A. ARMELIN, IPEN-CNEN, SP.; GILBERTO BATISTA DE SOUZA, CPPSE; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; MITIKO SAIKI, IPEN-CNEN, SP.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2009-12-11
Subjects:	IPEN, ANALISYS, Microelement, Analysis laboratory, Proficiency testing,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/577746
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