Document Detail

Analytical quality assurance for the WHO GEMS/Food-EURO programme--results of 1993/94 laboratory proficiency testing.
MedLine Citation:
PMID:  9205569     Owner:  NLM     Status:  MEDLINE    
As a means of assessing the performance of European laboratories who contribute analytical data on food contamination to the World Health Organization (WHO) Global Environmental Monitoring Scheme (GEMS), a series of five proficiency testing exercises were carried out during 1993 and 1994. In total 136 laboratories from 21 different countries took part in one or more of the exercises which covered the analysis of trace elements (lead, cadmium and mercury) in milk powder, pesticides (organochlorine, organophosphorus and pyrethroid) in spinach powder, nitrate in spinach powder, aflatoxins in nut-based animal feed and patulin in apple juices. The proficiency testing was carried out according to the ISO/IUPAC/AOAC INTERNATIONAL Harmonized Protocol and laboratories were awarded z-scores signifying their analytical capability based on their reported results for each of the respective exercises. Overall 60% of laboratories were satisfactory for accuracy for trace element analysis, 41% for pesticides, 43% for nitrate, 88% for aflatoxins and 53% for patulin. These results gave an overall poorer performance (68%) than the average for other similar schemes (79%), indicating the need for care in collating data for such programmes as GEMS and the need for remedial measures to assist in improving performance.
P Weigert; J Gilbert; A L Patey; P E Key; R Wood; N Barylko-Pikielna
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Food additives and contaminants     Volume:  14     ISSN:  0265-203X     ISO Abbreviation:  Food Addit Contam     Publication Date:    1997 May-Jun
Date Detail:
Created Date:  1997-07-16     Completed Date:  1997-07-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8500474     Medline TA:  Food Addit Contam     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  399-410     Citation Subset:  IM    
World Health Organization, Rome, Italy.
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MeSH Terms
Aflatoxin B1 / analysis
Animal Feed / analysis
Food Analysis / standards*
Food Contamination*
Fruit / chemistry
Milk / chemistry
Nitrates / analysis
Patulin / analysis
Pesticide Residues / analysis
Quality Assurance, Health Care*
Reference Standards
Spinacia oleracea / chemistry
World Health Organization*
Reg. No./Substance:
0/Nitrates; 0/Pesticide Residues; 1162-65-8/Aflatoxin B1; 149-29-1/Patulin

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