Document Detail


Comparison of analysis of vitamin D3 in foods using ultraviolet and mass spectrometric detection.
MedLine Citation:
PMID:  19249820     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A method for analysis of vitamin D(3) in commonly fortified foods and in fish, which contains endogenous vitamin D(3), was developed by combining the best aspects of two official methods. The ethyl ether/petroleum ether extraction procedure from AOAC 992.26 was combined with the chromatographic separation and use of an internal standard (vitamin D(2)) from AOAC 2002.05 to produce a method that was applicable to a variety of food samples. Results for skim milk, orange juice, breakfast cereal, salmon, a diluted USP reference standard (vitamin D(3) in peanut oil), and processed cheese are presented. Results indicated that UV detection was adequate in most cases, but the absence of interfering species must be determined in each food by mass spectrometry. Selected ion monitoring (SIM) atmospheric pressure chemical ionization (APCI) mass spectrometry (MS) was shown to produce statistically indistinguishable results compared to UV detection for the skim milk, orange juice, multigrain cereal, and salmon samples. The processed cheese exhibited interferences that precluded quantification of vitamin D(3) by UV detection, and therefore, only SIM APCI-MS data for that sample were valid.
Authors:
William C Byrdwell
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  57     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2009 Mar 
Date Detail:
Created Date:  2009-03-18     Completed Date:  2009-05-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2135-46     Citation Subset:  IM    
Affiliation:
USDA, ARS, BHNRC, Food Composition and Methods Development Laboratory, Beltsville, Maryland 20705, USA. C.Byrdwell@ars.usda.gov
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MeSH Terms
Descriptor/Qualifier:
Beverages / analysis
Cholecalciferol / analysis*
Chromatography, High Pressure Liquid / methods*
Citrus sinensis
Food Analysis / methods*
Fruit
Mass Spectrometry*
Spectrophotometry, Ultraviolet*
Chemical
Reg. No./Substance:
67-97-0/Cholecalciferol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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