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Fig. 2 | Environmental Health and Preventive Medicine

Fig. 2

From: Simultaneous measurement of urinary total nicotine and cotinine as biomarkers of active and passive smoking among Japanese individuals

Fig. 2

Free and total nicotine and cotinine levels in human urine. Values in 35 spot urine samples from 16 employees analyzed without/with de-glucuronidation (free/total). Median (quartiles) of free and total nicotine were 50 (192) and 359 (768) μg/mg creatinine, and 442 (862) and 901 (1928) μg/mg creatinine for free and total cotinine, respectively

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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