PMID- 26997255 OWN - NLM STAT- MEDLINE DCOM- 20170426 LR - 20181202 IS - 1879-3363 (Electronic) IS - 0025-326X (Linking) VI - 106 IP - 1-2 DP - 2016 May 15 TI - FTIR spectroscopy supported by statistical techniques for the structural characterization of plastic debris in the marine environment: Application to monitoring studies. PG - 155-61 LID - S0025-326X(16)30142-4 [pii] LID - 10.1016/j.marpolbul.2016.03.012 [doi] AB - We inserted 190 FTIR spectra of plastic samples in a digital database and submitted it to Independent Component Analysis (ICA) to extract the "pure" plastic polymers present. These identified plastics were polypropylene (PP), high density polyethylene (HDPE), low density polyethylene (LDPE), high density polyethylene terephthalate (HDPET), low density polyethylene terephthalate (LDPET), polystyrene (PS), Nylon (NL), polyethylene oxide (OPE), and Teflon (TEF) and they were used to establish the similarity with unknown plastics using the correlation coefficient (r), and the crosscorrelation function (CC). For samples with r<0.8 we determined the Mahalanobis Distance (MD) as additional tool of identification. For instance, for the four plastic fragments found in the Carretta carretta, one plastic sample was assigned to OPE due to its r=0.87; for all the other three plastic samples, due to the r values ranging between 0.83 and0.70, the support of MD suggested LDPET and OPE as co-polymer constituents. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Mecozzi, Mauro AU - Mecozzi M AD - Laboratory of Chemometrics and Environmental Applications, ISPRA, Via di Castel Romano 100, 00128 Rome, Italy. Electronic address: mauro.mecozzi@isprambiente.it. FAU - Pietroletti, Marco AU - Pietroletti M AD - Laboratory of Chemometrics and Environmental Applications, ISPRA, Via di Castel Romano 100, 00128 Rome, Italy. FAU - Monakhova, Yulia B AU - Monakhova YB AD - Spectral Service AG, Emil-Hoffmann-Strasse 33, 50996 Cologne, Germany; Institute of Chemistry, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia. LA - eng PT - Journal Article DEP - 20160317 PL - England TA - Mar Pollut Bull JT - Marine pollution bulletin JID - 0260231 RN - 0 (Plastics) RN - 0 (Polymers) RN - 0 (Polystyrenes) RN - 0 (Waste Products) RN - 0 (Water Pollutants) RN - 9002-88-4 (Polyethylene) SB - IM MH - Environment MH - Environmental Monitoring/*methods MH - Plastics/*analysis MH - Polyethylene MH - Polymers MH - Polystyrenes/analysis MH - *Spectroscopy, Fourier Transform Infrared MH - Waste Products/*analysis MH - Water Pollutants/*analysis OTO - NOTNLM OT - Correlation coefficient OT - FTIR spectroscopy OT - Independent component analysis OT - Mahalanobis distance OT - Plastic debris OT - Spectral library EDAT- 2016/03/22 06:00 MHDA- 2017/04/27 06:00 CRDT- 2016/03/22 06:00 PHST- 2015/10/29 00:00 [received] PHST- 2016/01/11 00:00 [revised] PHST- 2016/03/07 00:00 [accepted] PHST- 2016/03/22 06:00 [entrez] PHST- 2016/03/22 06:00 [pubmed] PHST- 2017/04/27 06:00 [medline] AID - S0025-326X(16)30142-4 [pii] AID - 10.1016/j.marpolbul.2016.03.012 [doi] PST - ppublish SO - Mar Pollut Bull. 2016 May 15;106(1-2):155-61. doi: 10.1016/j.marpolbul.2016.03.012. Epub 2016 Mar 17.