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Although liquid injections are commonly used in GC-MS workflows for this analysis, an alternative is solid phase micro extraction (SPME), which is a solvent-free technique that combines sample extraction with concentration in a single step

Bill Haslam

William Thomas Cain / Getty Images Kate Spade Spade revolutionized fashion in the early 1990s with her signature chic, boxy handbag that appealed to modern career women

Agius et al.12 showed that cotinin, a toxic metabolite of nicotine is capable of significantly reducing the cilliary beat of epithelial cells in vitro

"Smoking and Health: Report of the Advisory Committee to the Surgeon General of the Public Health Service"

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