Skin surface sampling for nicotine: a rapid, noninvasive method for identifying smokers.

Area of Science:

• Analytical Chemistry
• Biomedical Engineering
• Public Health

Background:

• Accurate identification of smokers is crucial for public health initiatives.
• Traditional methods like self-reporting or urine tests can be invasive or unreliable.
• There is a need for rapid, noninvasive screening tools to detect smoking status.

Purpose of the Study:

• To evaluate a novel, rapid, noninvasive skin surface air sampling method for detecting nicotine.
• To assess the efficacy of this method in identifying individuals who smoke.
• To compare the performance of skin surface air sampling with traditional urine analysis.

Main Methods:

• Utilized skin surface air sampling combined with ion-mobility spectrometry.
• Recruited 93 volunteers and patients, with 50 reporting a history of smoking.
• Collected urine samples from 50 participants for comparison using thin-layer chromatography.

Main Results:

• Skin surface air sampling correctly identified 49 out of 50 self-reported smokers.
• Nicotine was detected in 22 urine samples via thin-layer chromatography.
• The skin surface sampling method successfully identified all participants whose urine samples tested positive for nicotine.

Conclusions:

• The combination of skin surface air sampling and ion-mobility spectrometry is a highly effective, rapid, and noninvasive method.
• This technique demonstrates significant potential for accurately distinguishing smokers from nonsmokers.
• It offers a valuable tool for smoking cessation programs and epidemiological studies.