Welcome to GFC Diagnostics Ltd.

We are specialists in point of care detection of smoking and cotinine measurements and treatment adherence in TB.

GFC Diagnostics is the leading supplier of rapid cotinine testing. Used to verify and monitor smoking habit, smokeless tobacco use and electronic cigarettes.  We have the only quantitative point-of-care urine or saliva test for cotinine and the other nicotine metabolites.

Urine SmokeScreen

Is a 5-minute test to detect cotinine and the other nicotine metabolites by a colorimetric reaction.

Urine SmokeScreen: Provides a quantitative measure of cotinine and the other nicotine metabolites when used with the SmokeScreen Analyzer. This instrument automates the mixing and timing of the test and is sensitive enough to detect down to passive smoking levels. The test can be used simply with a colour chart to provide a semi-quantitative measurement of nicotine intake.

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Saliva SmokeScreen

We have developed a sensitive assay for cotinine and the other nicotine metabolites in saliva.  The test is currently used in pharmacies to assess smoking habit, whether as part of insurance wellbeing assessments or smoking cessation interventions.Saliva cotinine testing is the only simple means of assessing the use of electronic cigarettes as they do not generate carbon monoxide(CO).

IsoScreen

Is a urine test which detects the metabolites of isoniazid, an antibiotic drug used in the treatment of tuberculosis. This test is used to monitor treatment adherence in patients with TB, and helps to prevent the development of multidrug resistance.