Analyst performance with aflatoxin methods as determined from AOCS Smalley Check Sample Program: short-term and long-term views
McKinney, J.D.
Journal - Association of Official Analytical Chemists 67(1): 25-32
1984
ISSN/ISBN: 0004-5756 PMID: 6421795 Document Number: 240473
The International Smalley Aflatoxin Check Sample Program of the American Oil Chemists' Society has offered check sample series for aflatoxins in peanut meal, cottonseed meal and maize meal since 1976, and an aflatoxin M in raw milk series since 1980. This paper provides the computed mean of all analysts' results and between-laboratory precision for each of the samples in each of the check sample series distributed in 1980-1982. Evaluations of analyses for aflatoxin M1 in milk revealed large but improved between-laboratory coeff. of variation for all samples; the pooled value for all milk samples was 143% for the 1980-1981 series and 98% for the 1981-1982 series.