Clinical Chemistry Siemens Point of Care - Urinalysis
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Clinical Chemistry 18: 968-970, 1972;
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bradley, D. W.
Right arrow Articles by Emery, G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bradley, D. W.
Right arrow Articles by Emery, G.

Clinical Chemistry, Vol 18, 968-970, Copyright © 1972 by the American Association for Clinical Chemistry

Comparison of Ascorbic Acid Concentrations in Whole Blood Obtained by Venipuncture or by Finger Prick

Daniel W. Bradley 1, James E. Maynard 1, and Gladys Emery 1

1 Center for Disease Control, Phoenix Laboratories, 4402 North 7th St., Phoenix, Ariz. 85014.

Vitamin C (ascorbic acid) concentrations in whole blood obtained by finger prick or by venipuncture have been shown to be equivalent when measured by the 2,4-dinitrophenylhydrazine procedure. Whole blood obtained by either technique is stable for at least 6 h at 25°C, and for as long as 28 days when stabilized with trichloroacetic acid and stored at 4°C. Storage of whole blood at -70°C is accompanied by an initial loss (10-20%) of vitamin C; however, additional losses of vitamin C do not occur beyond the third day of storage.


Key Words: 2,4-dinitrophenylhydrazine procedure • vitamin C • stability on storage

Submitted on April 6, 1972
Accepted on July 3, 1972




The following articles in journals at HighWire Press have cited this article:


Home page
 Am J EpidemiolHome page
G. Block, E. Norkus, M. Hudes, S. Mandel, and K. Helzlsouer
Which Plasma Antioxidants Are Most Related to Fruit and Vegetable Consumption?
Am. J. Epidemiol., December 15, 2001; 154(12): 1113 - 1118.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1972 by the American Association for Clinical Chemistry.