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Rutecka"> <meta name="citation_author" content="J. Wojtas"> <meta name="citation_author" content="J. Mikolajczyk"> <meta name="citation_author" content="Z. Bielecki"> <meta name="citation_author" content="T. Stacewicz"> <meta name="citation_journal_title" content="WIT Transactions on The Built Environment"> <meta name="citation_volume" content="134"> <meta name="citation_isbn" content="978-1-84564-744-5"> <meta name="citation_issn" content="1746-4498"> <meta name="citation_publication_date" content="2013/09/17"> <meta name="citation_pdf_url" content="http://www.witpress.com/Secure/elibrary/papers/SAFE13/SAFE13033FU1.pdf"> <meta name="citation_publisher" content="WIT Press"/> <meta name="citation_firstpage" content="365"> <meta name="citation_lastpage" content="377"> <meta name="citation_doi" content="10.2495/SAFE130331" /> <meta name="citation_abstract_html_url" content="http://www.witpress.com/elibrary/wit-transactions-on-the-built-environment/134/25130"> <div class="row book-page"> <div class="col-md-3 non-responsive-only"> <div id="ajax_result"></div> <form action="/cart/openaccessdownload" id="PaperOpenaccessdownloadForm" method="post" accept-charset="utf-8"><div style="display:none;"><input type="hidden" name="_method" value="POST"/><input type="hidden" name="data[_Token][key]" value="ae763ab4d39017a1f927d27099957cb9f2e61064a48ae9d9d9b67362621ad327d533b0ed64fe9759ddb9a19e9652263ccafd7e50fd71cc613630675d1b04d9b2" id="Token1452632659" autocomplete="off"/></div><input type="hidden" name="data[Paper][Model]" value="Paper" id="PaperModel"/><input type="hidden" name="data[Paper][type]" value="paper" id="PaperType"/><input type="hidden" name="data[Paper][id]" value="25130" id="PaperId"/><button class="arrow_box buy-btn" type="submit">Download</button><div style="display:none;"><input type="hidden" name="data[_Token][fields]" value="46e44d6e38a4e64190c7f6ac61cf9dbe503d2c55%3APaper.Model%7CPaper.id%7CPaper.type" id="TokenFields321129355" autocomplete="off"/><input type="hidden" name="data[_Token][unlocked]" value="" id="TokenUnlocked2126450324" autocomplete="off"/></div></form> <br /> <div class="addthis_native_toolbox"></div> <br /> <div class="addthis_sharing_toolbox"></div> <div class="related-conferences"> <p class="related-conf-heading">Related conference</p> <p class="related-paper-title"><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025">SUSI 2025</a></p><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025"><img src="/theme/Witpress/img/conferences/SUSI/susi.jpg" alt="SUSI 2025" class="img-responsive conference-cover"/></a><div style="clear:both;"></div><p class="related-paper-title"><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025">9-11 June 2025</a></p><p class="related-paper-title"><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025">Edinburgh, UK</a></p> </div><p class="related-conf-heading">Related Book</p><div class="related-papers"><p class="related-paper-title"><a href="/books/978-1-84564-744-5">Safety and Security Engineering V</a></p><p class="related-paper-author">Edited By: F. Garzia, University of Rome ‘La Sapienza’, Italy; C.A. Brebbia, Wessex Institute of Technology, UK and M. Guarascio, University of Rome ‘La Sapienza’, Italy</p> </div> </div> <div class="col-md-6"> <div class="book-page-intro"> <p class="book-page-heading">Concentration System For Volatile Compounds Detection </p> <div class="part-responsive-only mobile-responsive-only small-responsive-only"> <form action="/cart/openaccessdownload" id="PaperOpenaccessdownloadForm" method="post" accept-charset="utf-8"><div style="display:none;"><input type="hidden" name="_method" value="POST"/><input type="hidden" name="data[_Token][key]" value="ae763ab4d39017a1f927d27099957cb9f2e61064a48ae9d9d9b67362621ad327d533b0ed64fe9759ddb9a19e9652263ccafd7e50fd71cc613630675d1b04d9b2" id="Token1684783173" autocomplete="off"/></div><input type="hidden" name="data[Paper][Model]" value="Paper" id="PaperModel"/><input type="hidden" name="data[Paper][type]" value="paper" id="PaperType"/><input type="hidden" name="data[Paper][id]" value="25130" id="PaperId"/><button class="arrow_box buy-btn" type="submit">Download</button><div style="display:none;"><input type="hidden" name="data[_Token][fields]" value="46e44d6e38a4e64190c7f6ac61cf9dbe503d2c55%3APaper.Model%7CPaper.id%7CPaper.type" id="TokenFields447545948" autocomplete="off"/><input type="hidden" name="data[_Token][unlocked]" value="" id="TokenUnlocked134296093" autocomplete="off"/></div></form> </div> </div> <div class="book-page-info"> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Price</span></p> </div> <div class="col-md-9"> <p> Free (open access)<img src="/theme/Witpress/img/openaccess.png" height="20px" style="float:left; margin-right: 5px;margin-top: 0px;" alt=""/> </p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Transaction</span></p> </div> <div class="col-md-9"> <p><a href="/elibrary/wit-transactions-on-the-built-environment">WIT Transactions on The Built Environment</a></p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Volume</span></p> </div> <div class="col-md-9"> <p>134</p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Pages</span></p> </div> <div class="col-md-9"> <p>13</p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Page Range</span></p> </div> <div class="col-md-9"> <p>365 - 377</p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Published</span></p> </div> <div class="col-md-9"> <p>2014</p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Size</span></p> </div> <div class="col-md-9"> <p>1363 kb</p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Paper DOI</span></p> </div> <div class="col-md-9"> <p>10.2495/SAFE130331</p> </div> </div> <div class="row"> <div class="col-md-3"> <p><span class="medium-green-text">Copyright</span></p> </div> <div class="col-md-9"> <p>WIT Press</p> </div> </div> </div> <div class="book-page-desc"> <p class="book-description">Author(s)</p> <p>B. Rutecka, J. Wojtas, J. Mikolajczyk, Z. Bielecki & T. Stacewicz </p> <p class="book-description">Abstract</p> <p> Detection of trace amounts of substance is a challenging task in many technologies. Nowadays, a lot of detection systems operate at the detection limit. It is observed especially in such areas as medicine or security; for example, in explosive detection. In medicine, the technology of trace substance detection is associated with breath analysis. Some specific diseases can change the concentration of certain molecules (biomarkers) in the exhaled air. Because of the extremely low concentration of explosives’ vapour and volatile compounds in exhausted breath, very sensitive detection instruments and an efficient system for their collection are needed. For this purpose, special devices – so-called concentrators – can be applied. Available solutions of the concentrators are dedicated to a specific detection system. The paper presents some projects of a concentration system, designed to cooperate with an optoelectronic sensor using cavity enhanced absorption spectroscopy (CEAS). Preliminary investigation showed that this setup provides the opportunity to detect 1 ng of such explosives as TNT, PETN, RDX and HMX. The results have also shown that such instruments could be used to detect some disease biomarkers in human breath. Keywords: optoelectronic sensor, explosives detection, breath analysis, concentrator system. </p><p class="book-description">Keywords</p> <p> optoelectronic sensor, explosives detection, breath analysis,concentrator system</p> </div> <div class="part-responsive-only mobile-responsive-only small-responsive-only">  <br /> <div class="addthis_native_toolbox"></div> <br /> <div class="addthis_sharing_toolbox"></div> <div class="related-conferences"> <p class="related-conf-heading">Related conference</p> <p class="related-paper-title"><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025">SUSI 2025</a></p><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025"><img src="/theme/Witpress/img/conferences/SUSI/susi.jpg" alt="SUSI 2025" class="img-responsive conference-cover"/></a><div style="clear:both;"></div><p class="related-paper-title"><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025">9-11 June 2025</a></p><p class="related-paper-title"><a href="https://www.wessex.ac.uk/conferences/2025/susi-2025">Edinburgh, UK</a></p> </div><p class="related-conf-heading">Related Book</p><div class="related-papers"><p class="related-paper-title"><a href="/books/978-1-84564-744-5">Safety and Security Engineering V</a></p><p class="related-paper-author">Edited By: F. 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