Using the blood concentration of 2,5-dimethylfuran as a marker for smoking
Correct analysis of whole blood volatile organic compounds (VOCs) in evaluating possible exposure situations requires differentiation of smokers from nonsmokers. Whole blood concentrations of 2,5-dimethylfuran are determined using an internal standard method, and the concentrations of this compound are evaluated as a marker for smoking in exposure-study subjects. Results indicate that the concentration of 2,5-dimethylfuran can be adequately determined in whole blood by a method already in use for determining VOCs in blood. The whole blood concentration of 2,5-dimethylfuran was an excellent predictor of smoking when compared with positive responses about smoking on questionnaires. Using a detection limit of 0.024 ppb, 2,5-dimethylfuran concentrations in blood correctly identified the smoking status of 96.4% of the subjects in this study. The blood 2,5-dimethylfuran concentration was linearly related to the number of cigarettes smoked per day. This method is advantageous since blood 2,5-dimethylfuran concentrations can be determined using the same method used to determine concentrations of other VOCs, thus obviating the need for additional analytical procedures.
Ashley, D. L., Bonin, M. A., Hamar, B., & McGeehin, M. (1996). Using the blood concentration of 2,5-dimethylfuran as a marker for smoking. International Archives of Occupational and Environmental Health, 68(3), 183-187. DOI: 10.1007/BF00381629