cotinine


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cotinine

[′kōt·ən‚ēn]
(organic chemistry)
The major metabolic product of nicotine which is excreted in the urine; used as a marker for environmental tobacco smoke.
References in periodicals archive ?
Because of the slow elimination of cotinine, several CM smoking programs have initially reinforced abstinence using daily breath CO monitoring and then transitioned to less frequent monitoring with cotinine measures (e.
Researchers found that the presence of significant nicotine on the hands of children was associated with equally significant levels of the harmful tobacco metabolite cotinine in their saliva.
Cotinine is the best biomarker of smoking status available (Benowitz 1996; Kvalvik et al.
96nl/ml of cotinine in their saliva, while in 1998 this had reduced to 0.
The PTS Detect system measures quantified cotinine (a byproduct of nicotine) levels from 25 ng/ml to 200 ng/ml in just 5 minutes.
There was a dose-related response: the higher the cotinine levels, the poorer the gross motor skills.
We believe that routine or selective serum or urine cotinine testing will enable us to stratify risk in both elective and reconstructive scenarios.
The chromatogram in Figure 2 illustrates a urine/matrix suppression study when using an ESI source and represents a post-column infusion of high concentration standards of nicotine, cotinine, 3-OH-cotinine, nornicotine and anabasine, while a low level urine extract is injected on column.
purchase urinary cotinine test required to demonstrate nicotine withdrawal of the participants in the "choose no smoking 2013" according to the contest notary bases.
Cotinine levels in the seven-year-olds were four times higher than in children of non-smoking mothers, research found.
Participants who reported having smoked "at least one day" in the last month or "at least one cigarette" in the last month, or those who had serum cotinine concentrations over 10 ng/ml were classified as active smokers.
The investigators defined current smokers, who made up 25% of the sample, as survey participants who reported that they smoke cigarettes and had a measured serum cotinine level greater than 3 nanograms per milliliter (ng/mL).