1
|
Eppley RM, Trucksess MW, Nesheim S, Thorpe CW, Pohland AE, Applegate SL, Bean GA, Chang H, Chatel R, Deteghem CV, Gibson GE, Gilbert J, Gross AF, Howell MV, Nowicki TW, Scott PM, Seitz LM, Subryan L, Terhune S, Ware G. Thin Layer Chromatographic Method for Determination of Deoxynivalenol in Wheat: Collaborative Study. J AOAC Int 2020. [DOI: 10.1093/jaoac/69.1.37] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A collaborative study of a rapid method for the determination of deoxynivalenol (DON) in winter wheat was successfully completed. The method involves sample extraction with acetonitrile-water (84 + 16), cleanup using a disposable column of charcoal, Celite, and alumina, and detection by thin layer chromatography after spraying with an aluminum chloride solution. Each of the 15 collaborators analyzed 12 samples, 2 of which were naturally contaminated, and 10 to which DON was added, in duplicate, at levels of 0,50,100,300, and 1000 ng/ g. Average recoveries of DON ranged from 78 to 96% with repeatabilities of 30-64% and reproducibilities of 33-87%. The results of the study show that false positives were not a problem and that all of the analysts could detect DON at the 300 ng/g level or higher. The method has been adopted official first action.
Collapse
Affiliation(s)
- Robert M Eppley
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - Mary W Trucksess
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - Stanley Nesheim
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - Charles W Thorpe
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - Albert E Pohland
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | | | - S L Applegate
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - G A Bean
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - H Chang
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - R Chatel
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - C van Deteghem
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - G E Gibson
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - J Gilbert
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - A F Gross
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - M V Howell
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - T W Nowicki
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - P M Scott
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - L M Seitz
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - L Subryan
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - S Terhune
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| | - G Ware
- Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204
| |
Collapse
|