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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When we talk of journalism, we are looking at professionals such as editors, reporters, anchors, photographers and so on. In order for us to fully understand the difference between a journalist and a reporter, let us take journalism to be the universal set and reporting being the subset. What this means is that reporting is a part of journalism. A journalist gathers information and writes for newspapers, magazines, radio and television.