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Immuno chromatographic technique for cigarette drug testing

Cigarette smoking is commonly found in almost all groups of people in the society. As the consequences of cigarette smoking are very dangerous leading to cancer, heart stroke and other breathing difficulty, immediate treatment is required to overcome the smoking. Lot of methods is available to overcome the cigarette smoking, one among that is drug testing for cigarettes. Drug testing for smoking utilize the principle of immuno chromatography.

Immuno chromatography is the widespread technique applied for drug testing. In cigarette drug testing immuno chromatography utilizes the golden particles and antibodies for cotinine. Materials that are included in the testing kit are

· NicAlert Strip – every NicAlert test strip is independently packed in a preserved labeled plastic pouch.

Every test strip is self-possessed of the following:

· Mouse monoclonal antibodies to react with cotinine, which are coated with colloidal gold particles.

· Rabbit anti-mouse polyclonal antibodies to react with mouse antibodies.

· 1 percent Cobalt Blue dye.

· Carboxycotinine, isopropyl carboxynorcotinine, carboxyphenylethylcotinine bromide.

· 50mM sodium phosphate buffer – pH 7.2,

· Bulking agents, stabilizers.

· 5mm X 90mm nitrocellulose saturated with Cotton pads, filters.

A control is also provided with the pack which contain

· NicAlert Negative Control with the limit of cotinine 0 ng/mL

· NicAlert Low Positive Control with the limit of cotinine 400 ng/mL

· NicAlert High Positive Control with the limit of cotinine 2000 ng/mL

Positive and negative controls are ready to use with human saliva samples. Controls are prepared by the known concentration of cotinine. Negative Control human saliva is used to test negative for even human pathogens including HBV, HCV, and HIV. The small application of cotinine in the NicAlert Controls are predicted and confirmed by liquid chromatography/ mass spectrometry. A smoking test consists of blood nicotine test, cigarette blood test, cigarette smoke test, cotinine test in urine.

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