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Quantitative analysis of limonin in grapefruit juice using an enzyme-linked immunoassay: interlaboratory study

Widmer, W.W.; Rouseff, R.L.

Journal - Association of Official Analytical Chemists 74(3): 513-515

1991

ISSN/ISBN: 0004-5756
PMID: 1874697
Document Number: 731
Eleven laboratories participated in an interlaboratory study of an enzyme-linked immunoassay for limonin in grapefruit juice. Participating laboratories received training and practice samples until familiar with the procedure. Laboratories then received 8 sample pairs of grapefruit juice as blind duplicates. Samples were refrigerated and analyzed within 4 days of receipt. Results from 1 laboratory and 6 individual samples were excluded from the statistical analysis. Method performance was measured by the one-way component of variance analysis. Repeatability relative standard deviations (RSDr) ranged from 7.0 to 15.6%. Reproducibility relative standard deviations (RSDR) ranged from 12.9 to 29.4%.

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Quantitative analysis of limonin in grapefruit juice using an enzyme-linked immunoassay: interlaboratory study

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