Results 261 to 270 of about 2,787,968 (277)

Stable isotope dilution assays as tools for assessing folate bioavailability

2012
Folates play a crucial role as coenzymes in the metabolism of one-carbon groups and folate deficiency is considered to increase the risk of neural tube defects.To evaluate folate bioavailability, two short-term designs were applied.In the first investigation, a large-scale human study with application of model foods revealed a low folate ...
Rychlik, Michael, Moench, Sabine, Netzel, Michael, Netzel, Gabriele, Oehrvik, Veronica, Buettner, Barbara, Lundin, Eva, Witthoeft, Cornelia M.   +7 more
openaire   +1 more source

Quantification of Free and Bound Pantothenic Acid in Foods and Blood Plasma by a Stable Isotope Dilution Assay

Journal of Agricultural and Food Chemistry, 2000
A stable isotope dilution assay for quantification of pantothenic acid in food and blood plasma uses a 4-fold labeled isotopomer of the vitamin as an internal standard. Pantothenic acid and its labeled analogue were detected as trimethylsilyl derivatives by gas chromatography-mass spectrometry, showing a minimized spectral overlap.
openaire   +2 more sources

Determination of Vitispirane in Wines by Stable Isotope Dilution Assay

American Journal of Enology and Viticulture, 2006
Nigel J. Eggers, Karen Bohna, Brynn Dooley   +2 more
openaire   +1 more source

A stable isotope dilution mass spectrometric assay for the major urinary metabolite of PGD2.

Advances in prostaglandin, thromboxane, and leukotriene research, 1991
1. A sensitive and specific negative ion chemical ionization mass spectrometric assay for the major urinary metabolite of PGD2 has been developed employing a chemically synthesized [18(0)4]-labelled internal standard. 2. The finding that increased urinary excretion of this metabolite occurs in a number of clinical situations suggests that the assay may
J D, Morrow, C, Prakash, T A, Duckworth, W E, Zackert, I A, Blair, J A, Oates, L J, Roberts   +6 more
openaire   +1 more source

Quantitation of Trichothecene Mycotoxins by Stable Isotope Dilution Assays

2008
Michael Rychlik, Stefan Asam
openaire   +1 more source

Stable Isotope Dilution Assay

2019
openaire   +1 more source

Folate contents of legumes determined by optimized enzyme treatment and stable isotope dilution assays

Journal of Food Composition and Analysis, 2007
Michael Rychlik
exaly  

Biosynthesis of 15N3-Labeled Enniatins and Beauvericin and Their Application to Stable Isotope Dilution Assays

Journal of Agricultural and Food Chemistry, 2012
Michael Rychlik
exaly  

Study of volatile organic acids in freeze-dried formed during fermentation using SPME and stable-isotope dilution assay (SIDA)

Food Chemistry, 2007
Min Kyung Park, Hyung-Kyoon Choi, Young-Suk Kim   +2 more
exaly  

Simultaneous analysis of folic acid and pantothenic acid in foods enriched with vitamins by stable isotope dilution assays

Analytica Chimica Acta, 2003
Michael Rychlik
exaly