2015.14 Vitamin B (July 2018)

2015.14 (JULY 2018) BVit-02 AOAC_Riboflavin_Tot_MLT- AOAC_BlindDup_EV4H2Q

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AOAC International Interlaboratory Study Workbook

Version:

2.1

Blind (Unpaired) Replicates Calculations Sheet

AOAC 2015.14 Simultaneous Determination of Total Vitamins B1, B2, B3, and B6 in Infant Formula and Related Nutritiona

Summary Statistics

0.0001 Largest within variance 0.0520 Largest average lab result 0.0248 Smallest average lab result 0.0439 Grand average of all lab averages

0.00783 S(2H)

0.0520 Max Val(1) 0.0495 Max Val(2) 0.0248 Min Val(1) 0.0387 Min Val(2) 0.0039 S(HL) 0.0520 Max Val 0.0248 Min Val 0.0035 S(2L)

0.00781 s

0.00772 S(h) 0.00426 S(l)

0.052

0.0248407

10 # Laboratories

Average Lab Result^2

Average Lab Result^2 Results^2

Average Lab Result

Sum of Lab Results

# Lab Replicates given

Sum of Results^2/#Reps DEVN of Sq

Variance within DEVN of Sq

Lab

1 2 3 4 5 6 7 8 9

2 0.1040 0.0520 2 0.0946 0.0473 2 0.0970 0.0485 2 0.0880 0.0440 2 0.0990 0.0495 2 0.0903 0.0451 2 0.0774 0.0387 2 0.0965 0.0483 2 0.0497 0.0248 2 0.0818 0.0409

0.0027 0.0022 0.0024 0.0019 0.0025 0.0020 0.0015 0.0023 0.0006 0.0017

0.0056 0.0046 0.0047 0.0039 0.0049 0.0041 0.0030 0.0047 0.0012 0.0033

0.0054 0.0045 0.0047 0.0039 0.0049 0.0041 0.0030 0.0047 0.0012 0.0033

0.0001 0.0001 0.0001 0.0001 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

0.0001 Lab 1 0.0001 Lab 2 0.0000 Lab 3 0.0000 Lab 4 0.0000 Lab 5 0.0000 Lab 6 0.0000 Lab 7 0.0000 Lab 8 0.0000 Lab 9 0.0000 Lab 10

0.0520 Lab 1 0.0473 Lab 2 0.0485 Lab 3 0.0440 Lab 4 0.0495 Lab 5 0.0451 Lab 6 0.0387 Lab 7 0.0483 Lab 8 0.0248 Lab 9 0.0409 Lab 10

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

Lab 11 Lab 12 Lab 13 Lab 14 Lab 15 Lab 16 Lab 17 Lab 18 Lab 19 Lab 20 Lab 21 Lab 22 Lab 23 Lab 24 Lab 25 Lab 26 Lab 27 Lab 28 Lab 29 Lab 30 Lab 31 Lab 32 Lab 33 Lab 34 Lab 35 Lab 36 Lab 37 Lab 38 Lab 39 Lab 40 Lab 41 Lab 42 Lab 43 Lab 44 Lab 45 Lab 46 Lab 47 Lab 48 Lab 49

Lab 11 Lab 12 Lab 13 Lab 14 Lab 15 Lab 16 Lab 17 Lab 18 Lab 19 Lab 20 Lab 21 Lab 22 Lab 23 Lab 24 Lab 25 Lab 26 Lab 27 Lab 28 Lab 29 Lab 30 Lab 31 Lab 32 Lab 33 Lab 34 Lab 35 Lab 36 Lab 37 Lab 38 Lab 39 Lab 40 Lab 41 Lab 42 Lab 43 Lab 44 Lab 45 Lab 46 Lab 47 Lab 48 Lab 49