The future utility of liquid chromatography–mass spectrometry (LC–MS) in metabolic
profiling and metabolomic studies for biomarker discovery is discussed, beginning with a …

Quantitative analysis of methoxypyrazinesin a range of red wines is reported for the first
time. By stable isotope dilution gas chromatography-mass spectrometry, 2-methoxy-3-(2 …

Coupling high performance liquid chromatography with gas chromatography-mass
fragmentography has made it possible to simultaneously measure subpicomolar …

Homocysteine is an endogenous sulphydryl aminoacid irreversibly catabolized by
transsulfuration to cysteine or remethylated to methionine. Increased plasma levels of …

Extracted from the Drug Abuse Handbook, 2nd edition, to give you just the information you
need at an affordable price. Postmortem Toxicology of Abused Drugs considers the role of …

Methoxypyrazines are strikingly potent odorants. 2-Methoxy-3-(2-methylpropyl) pyrazine (1)(
isobutylmethoxypyrazine) has an odour threshold of 1-2ngr'in water (Buttery et al. 1969a, b; …

A major stimulus to research on grape flavour has been wine production, because grape
varietal flavour is a primary determinant of wine style, quality and price. This emphasis on …

The urinary 6β-OH-cortisol/cortisol ratio is a specific, non-invasive marker for evaluating
inductive or inhibitory effects on cytochrome P450 3A activity. We propose a new …

Abstract Four isotopically (13C)‐labeled phenolic acids (caffeic [M+ 3], sinapic [M+ 2], p‐
coumaric [M+ 6] and ferulic [M+ 6] acids) were synthesized via a simple one‐step malonic …

La tyrosinémie héréditaire de type I est un désordre génétique causé par l'absence d'activité
de l'enzyme fumarylacétoacétate hydrolase impliquée dans le catabolisme de la …