Microdiffusion and Fluoride-Specific Electrode Determination of Fluoride in Infant Foods: Collaborative Study
Keyword(s):
Abstract Twelve laboratories analyzed (1 replicate) 12 samples of infant foods – milk, pears, and peas – containing 0.2-5 ppm F. There was one laboratory outlier. Mean coefficients of variation were 7.06% for intralaboratory determination of 3 sets of blind duplicates and 21.6% for interlaboratory determination of 12 samples. Variance analysis for all samples yielded a reproducibility standard deviation of 0.41 ppm; for 3 sets of blind duplicates, repeatability standard deviation was 0.26 ppm and reproducibility standard deviation was 0.32 ppm.
1997 ◽
Vol 80
(3)
◽
pp. 469-480
◽
1989 ◽
Vol 72
(1)
◽
pp. 34-37
◽
1995 ◽
Vol 78
(2)
◽
pp. 301-306
◽
1982 ◽
Vol 65
(5)
◽
pp. 1178-1185
◽
2006 ◽
Vol 89
(4)
◽
pp. 929-936
◽
1994 ◽
Vol 77
(4)
◽
pp. 829-839
◽