Kinetic-fluorimetric determination of ascorbic acid at the nanomole level

The Analyst ◽  
1987 ◽  
Vol 112 (6) ◽  
pp. 775-778 ◽  
Author(s):  
José Peinado ◽  
Fermin Toribio ◽  
Dolores Pérez-Bendito
Keyword(s):  
Ascorbic Acid ◽  
Fluorimetric Determination

scholarly journals An ultramicro fluorimetric determination of total ascorbic acid in human serum using 1,2-diamino-4,5-dimethoxybenzene.

1985 ◽  
Vol 33 (8) ◽  
pp. 3499-3502 ◽  
Author(s):  
TETSUHARU IWATA ◽  
SHUUJI HARA ◽  
MASATOSHI YAMAGUCHI ◽  
MASARU NAKAMURA ◽  
YOSUKE OHKURA
Keyword(s):  
Ascorbic Acid ◽  
Human Serum ◽  
Fluorimetric Determination

Flow injection Fluorimetric Determination of Ascorbic Acid Based on its Photooxidation by Thionine Blue

The Analyst ◽  
1997 ◽  
Vol 122 (2) ◽  
pp. 115-118 ◽  
Author(s):  
Tomás Pérez-Ruiz ◽  
Carmen Martínez-Lozano ◽  
Virginia Tomás ◽  
Ciriaco Sidrach
Keyword(s):  
Ascorbic Acid ◽  
Flow Injection ◽  
Fluorimetric Determination

Fluorimetric determination of total ascorbic acid by a stopped-flow mixing technique

The Analyst ◽  
2001 ◽  
Vol 126 (8) ◽  
pp. 1436-1439 ◽  
Author(s):  
Tomás Pérez-Ruiz ◽  
Carmen Martínez-Lozano ◽  
Virginia Tomás ◽  
José Fenol
Keyword(s):  
Ascorbic Acid ◽  
Stopped Flow ◽  
Fluorimetric Determination ◽  
Flow Mixing

Fluorimetric Determination of Cerium(IV) with Ascorbic Acid

2006 ◽  
Vol 16 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Mohammad Mainul Karim ◽  
Sang Hak Lee ◽  
Young Sun Kim ◽  
Hyun Sook Bae ◽  
Sang Beom Hong
Keyword(s):  
Ascorbic Acid ◽  
Fluorimetric Determination

Fluorometric determination of ascorbic acid in the absence of the oxidant in juices of common citrus

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
A Copra-Janicijevic ◽  
E Sofic ◽  
L Klepo ◽  
A Topcagic ◽  
I Tahirovic ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Fluorometric Determination

The Effect of Stress and Warfarin on the Adrenal Gland in Relation to Spontaneous Hemorrhage, as Judged by Measurement of Adrenal Ascorbic Acid and Serum Corticosterone

1971 ◽  
Vol 26 (02) ◽  
pp. 275-288 ◽  
Author(s):  
S Chattopadhyay ◽  
D. D Johnson ◽  
G. J Millar ◽  
L. B Jaques
Keyword(s):  
Ascorbic Acid ◽  
Acid Concentration ◽  
Ascorbic Acid Concentration ◽  
Corticosterone Concentration ◽  
Serum Corticosterone ◽  
Spontaneous Hemorrhage ◽  
Combined Action ◽  
Series Of Experiments ◽  
Pituitary Adrenal Axis

SummaryRats were subjected to the following procedures: No treatment, Stressor (10% NaCl i.p.), Warfarin for 7 days, Stressor followed by Warfarin; and groups were sacrificed at intervals for assessment of spontaneous hemorrhage and of adrenal ascorbic acid concentration. There was no hemorrhage in the no treatment and stressor groups; some hemorrhage in the warfarin group; profound hemorrhage with Warfarin + Stressor. The adrenal ascorbic acid concentration was found to be lower, 8 h and again 5 days after stress, and remained lower in the warfarin + stress animals. Warfarin had no effect on adrenal ascorbic acid level.In another series of experiments in which the stress consisted of an electric current to the cage floor for 6 sec over 15 min, rats were sacrificed daily for determination of serum corticosterone concentration and occurrence of spontaneous hemorrhage. There was a statistically significant increase of serum corticosterone concentration with stress, warfarin and combined warfarin and stress treatments (P< 0.001 for all three variables). There was a significant correlation (r = 0.96 and 0.89, P< 0.01) for serum corticosterone concentration with hemorrhage score and incidence of hemorrhage in stressed rats receiving warfarin, but not in those receiving only warfarin. The results indicate an activation, rather than an exhaustion, of the pituitary-adrenal axis during the combined action of anticoagulant and stress, which results in the development of spontaneous hemorrhage.

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