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.
Learn how to become a journalist. Research the education requirements, training information, and experience required for starting a career in the journalism field. View 10 Popular Schools Â».
How to Become a News Reporter: Education and Job Training Requirements for Becoming a News Reporter. Published Sep 15, 2009. News reporters gather information, write news articles and present the articles through various media, such as television, magazines and newspapers.