Document Detail

The Italian external quality assessment scheme for trace element analysis in body fluids.
MedLine Citation:
PMID:  8913045     Owner:  NLM     Status:  MEDLINE    
We describe the operative procedures of the Italian external quality assessment scheme (EQAS) for the determination of trace elements in body fluids. The aims of the scheme are both the education of participants and the continuous development and optimization of procedures for collaborative EQA trials. Participation is free of charge. Interlaboratory exercises for EQA are organised every three or four months for the determination of cadmium and lead in blood; aluminium, copper, selenium and zinc in serum; chromium and nickel in urine. Freeze-dried control materials are prepared in the laboratory from animal blood or human urine. In each trial, each participant receives from six to eight samples, chosen from among the pools selected for that occasion using a randomised strategy and including unknown duplicate specimens. Laboratory performances are evaluated on the basis of proximity to target values, differences in results for duplicate samples and comparison with established acceptability limits. The development of dedicated software for the bidirectional transmission of data between the organising centre and the peripheral laboratory gives the participants the chance to verify immediately the quality of their results and take action without delay, if needed.
A Menditto; M Patriarca; F Chiodo; G Morisi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annali dell'Istituto superiore di sanità     Volume:  32     ISSN:  0021-2571     ISO Abbreviation:  Ann. Ist. Super. Sanita     Publication Date:  1996  
Date Detail:
Created Date:  1996-12-12     Completed Date:  1996-12-12     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7502520     Medline TA:  Ann Ist Super Sanita     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  261-70     Citation Subset:  IM    
Laboratorio di Biochimica Clinica, Istituto Superiore di Sanità, Rome, Italy.
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MeSH Terms
Environmental Monitoring / standards*
Laboratories / standards*
Program Evaluation
Quality Control*
Reference Values
Trace Elements / analysis*,  blood,  urine
Reg. No./Substance:
0/Trace Elements

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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