| Title: | The need for multicomponent gas standards for breath biomarker analysis |
| Author(s): | Jeerage KM; Berry JL; Murray JA; Goodman CA; Piotrowski PK; Jones CM; Cecelski CE; Carney J; Lippa KA; Lovestead TM; |
| Address: | "Applied Chemicals and Materials Division, NIST, 325 Broadway, Boulder, CO 80305, United States of America. Chemical Sciences Division, NIST, 100 Bureau Drive, Gaithersburg, MD 20899, United States of America. Office of Advanced Manufacturing, NIST, 100 Bureau Drive, Gaithersburg, MD 20899, United States of America. Office of Weights and Measures, NIST, 100 Bureau Drive, Gaithersburg, MD 20899, United States of America" |
| ISSN/ISBN: | 1752-7163 (Electronic) 1752-7155 (Linking) |
| Abstract: | "Exhaled breath is a non-invasive, information-rich matrix with the potential to diagnose or monitor disease, including infectious disease. Despite significant effort dedicated to biomarker identification in case control studies, very few breath tests are established in practice. In this topical review, we identify how gas standards support breath analysis today and what is needed to support further expansion and translation to practice. We examine forensic and clinical breath tests and discuss how confidence has been built through unambiguous biomarker identification and quantitation supported by gas calibration standards. Based on this discussion, we identify a need for multicomponent gas standards with part-per-trillion to part-per-million concentrations. We highlight National Institute of Standards and Technology gas standards developed for atmospheric measurements that are also relevant to breath analysis and describe investigations of long-term stability, chemical reactions, and interactions with gas cylinder wall treatments. An overview of emerging online instruments and their need for gas standards is also presented. This review concludes with a discussion of our ongoing research to examine the feasibility of producing multicomponent gas standards at breath-relevant concentrations. Such standards could be used to investigate interference from ubiquitous endogenous compounds and as a starting point for standards tailored to specific breath tests" |
| Keywords: | Biomarkers *Breath Tests Exhalation Humans Reference Standards *Volatile Organic Compounds/analysis gas standards reference materials volatile organic compounds; |
| Notes: | "MedlineJeerage, Kavita M Berry, Jennifer L Murray, Jacolin A Goodman, Cassie A Piotrowski, Paulina K Jones, Christina M Cecelski, Christina E Carney, Jennifer Lippa, Katrice A Lovestead, Tara M eng Review England 2022/05/19 J Breath Res. 2022 Jul 7; 16(4). doi: 10.1088/1752-7163/ac70ef" |
