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0.0020

0.0015

0.0010

AU

0.0005

0.0000

21.902

24.542

vitamin B12 - 26.229

-0.0005

6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 26.00 28.00

4.00

2.00

Minutes

Figure 4. Chromatogram of blind duplicate labeled as YATV077 (adult nutritional RTF high fat)—mislabeled sample.

Isabelle Malaviole, Aquanal, Pessac, France

Recommendation

The multilaboratory collaborative study data were summarized and presented to the ERP in September 2014. After reviewing the data, the ERP voted to move AOAC 2011.10 to Final Action status, and the method was approved by the AOAC Official Methods Board as a Final Action method.

References

(1) Fennema, O.R. (1996) Food Chemistry , 3rd Ed., Marcel Dekker, Inc., New York, NY (2) Ball, G.F.M. (1994) Water-Soluble Vitamin Assays in Human Nutrition , Chapman & Hall, London, UK. http://dx.doi. org/10.1007/978-1-4615-2061-0 (3) AOAC SMPR 2011.005 (2012) J. AOAC Int . 95 , 293 (4) Campos-Gimenez, E., Fontannaz, P., Trisconi, M., Kilinc, T., Gimenez, C., & Andrieux, P. (2012) J. AOAC Int . 95 , 307–312. http://dx.doi.org/10.5740/jaoacint.CS2011_08 (5) Kirchner, U., Degenhardt, K., & Raffler, G. (2012) J. AOAC Int . 95 , 933–936. http://dx.doi.org/10.5740/jaoacint.CS2011_09 (6) Schimpf, K., Spiegel, R., & Thompson, L. (2012) J. AOAC Int . 95 , 313–318. http://dx.doi.org/10.5740/jaoacint.CS2011_10 (7) Vyas, P., O’Kane, A., & Dowell, D. (2012) J. AOAC Int . 95 , 329–334. http://dx.doi.org/10.5740/jaoacint.CS2011_16 (8) Schimpf, K., Spiegel, R., Thompson, L., & Hughes, D. (2013) Inside Laboratory Management , Nov/Dec, pp 15–17 (9) AOAC INTERNATIONAL Interlaboratory Study Workbook Blind (Unpaired) Replicates , 7/17/2013, Copyright 2006, 2012 by AOAC INTERNATIONAL, Version 2.1, Rockville, MD

Acknowledgments

The authors would like to thank the following collaborators and their associates: Jean-Marie Oberson and Frederic Martin, Nestlé, Lausanne, Switzerland Yao Shen, Bo Liu, and Bo Chen, Hunan Normal University, Changsha, China; Diane Labitan, Wyeth Nutrition, Canlubang Factory, Makati City, The Philippines Ashutosh Mittal, Syngene, India Biljana Marosanovic, SP Laboratorija Victoria Group, Serbia Greg Hostetler and Scott Christiansen, Perrigo Nutritionals, Georgia, VT Andrew Ruosch and John Austad, Covance Laboratories, Madison, WI Cristina Domer, Abbott Nutrition, Singapore Guoquan Wang, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China