Welcome to GFC Diagnostics

GFC Diagnostics is among the World's leaders in rapid cotinine testing. Used to verify and monitor smoking habit. We have the only quantitative point-of-care urine test for cotinine and the other nicotine metabolites.

SafeTube: this is the patented technology which allows quick and easy colorimetric assays to be carried out away from the laboratory, without the need for expensive instrumentation. The device allows reactive chemicals to be isolated from one another before the test. After use it safely contains reagents and sample, reducing the chance of operator contamination and allows for safe disposal.

SmokeScreen: is the first test to use the testing device. SmokeScreen, a rapid urine test can be used on its own to correctly identify smokers, with a colour chart for a semi-quantitative measure of smoking. It can be read with the new dedicated Analyzer for a quantitative measure of nicotine intake. This instrument is sensitive enough to detect down to passive smoking levels. The colorimetric assay turns a urine sample different shades of pink - the heavier the smoker the darker the colour.

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 multi-drug resistance.