Most of the nicotine will be excreted from the system within twenty minutes after smoking. Nonetheless, it can be detected in the saliva for approximately 24 hours after the last smoke. Its metabolite, cotinine, can be detected for as long as 4 to 7 days depending on the amount of nicotine consumed.
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Confidence votes 4. To become a journalist, you have to attend college/university for at least 4 years and graduate with a Bachelor's degree. You can also continue on into Graduate School for approximately 2 more years to receive a Master's degree in Journalism.ee information below regarding the differences in journalism work depending on the degree. A Bachelor's degree takes 4 years of college, attending full-time (also called Undergraduate School.) A Bachelor's degree in journalism mixes industry-specific courses with broad exposure to the arts and humanities.