Figure 1. The patented sampling device that was developed for collecting bioaerosol particles from exhaled breath. The mouth piece is constructed to let only microparticles pass onto the filter. The plastic bag is filled and discarded together with the mouth
piece. Only the
device housing is sent for analysis. Substances collected on the filter is eluted with solvent and undergoes mass spectrometric investigation.
specimen when a shorter detection time is ac- ceptable and when sampling of urine or blood becomes impractical. ❚
References 1.
Peters F.T. (2011) Recent advances of liquid chromatography- (tandem) mass spectrometry in clinical and forensic toxicology. Clin. Biochem. 44, 54-65.
2.
Carroll F.I., Lewin A.H., Mascarella W., Seltzman H.H., Reddy P.A. (2012) Designer drugs: a medicinal chemistry perspective. Ann. NY Acad. Sci. 1248, 18-38.
3.
Gallardo E., Queiroz J.A. (2008) The role of alternative specimens in toxicological analysis. Biomed Chromatogr. 22, 795–821.
4.
Jonsson A., Hök B., Andersson L., Hedenstrierna G. (2009) Methodology investigation of expirograms for enabling contact free breath alcohol analysis. Journal of Breath Research. 3, 1752–1755.
5.
Miekisch W., Schubert J.K. (2005) From highly sophisticated analytical techniques to life-saving diagnostics: technical developments in breath analysis. Trends Anal Chem. 25, 665–673.
6.
Buszewski, B.B., Kesy, M., Ligor, T. Amann, A. (2007) Human exhaled air analytics: biomarkers of disease. Biomedical Chromatography , 21, 553–566.
Be sure with alcohol biomarkers.
Let your clients know they can now see the big picture when it comes to monitoring alcohol behavior. Urine can detect up to 3 days of use. BloodSpot® can detect up to 3 weeks and fingernail/hair can detect up to 3 months of risky alcohol behavior – without worry of incidental exposure or tissue bias. The use of all 3 matrices can tell the complete story.
We would love to answer any questions you may have. Stop by booth #202 to speak to one of our toxicologists.
United States Drug Testing Laboratories, Inc. ®
Visit our website at
USDTL.com USDTL.com 36 datia focus spring 2013
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