PMID- 31277002
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20190830
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 689
DP  - 2019 Nov 1
TI  - Using FTIRS as pre-screening method for detection of microplastic in bulk 
      sediment samples.
PG  - 341-346
LID - S0048-9697(19)32800-1 [pii]
LID - 10.1016/j.scitotenv.2019.06.227 [doi]
AB  - We present calibration models for the detection of two types of plastic (LDPE, 
      PET) in sediments, developed from analysis of synthetic sediment mixtures and 
      application of Fourier transform infrared spectroscopy (FTIRS) and partial least 
      squares regression (PLSR) modeling. Synthetic sediment mixtures were produced 
      using ground plastic particles mixed with various different sediment matrixes 
      yielding LDPE and PET contents ranging from 0 to 5 wt%. The resulting PLSR 
      calibration models between the FTIRS spectral information and the defined plastic 
      concentration of the synthetic sediment mixtures show strong cross-validated 
      correlations (R(2)(CV) = 0.73 and 0.72) as well as low root-mean square errors of 
      cross-validation (RMSE(CV) = 0.72 and 0.61; 14.4% and 12.2% when expressed as % 
      of gradient). Application of the calibration to natural sediments shows that the 
      method can be used to detect the presence of microplastics in sediment. The 
      results are only semi-quantitative and semi-qualitative, and the method is 
      suitable mainly for samples with very high microplastic concentrations (>1%). 
      However the major advantage of this procedure is the time and cost efficiency. 
      For studies with large amounts of samples (e.g. monitoring applications) we 
      recommend this method as a pre-screening tool for selecting samples with plastic 
      content for further analysis.
CI  - Copyright (c) 2019 Elsevier B.V. All rights reserved.
FAU - Hahn, Annette
AU  - Hahn A
AD  - MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, 
      Germany. Electronic address: ahahn@marum.de.
FAU - Gerdts, Gunnar
AU  - Gerdts G
AD  - Alfred-Wegener-Institut Helmholtz-Zentrum fur Polar- und Meeresforschung (AWI), 
      Helgoland, Germany.
FAU - Volker, Carolin
AU  - Volker C
AD  - ISOE - Institute for Social-Ecological Research, Frankfurt am Main, Germany.
FAU - Niebuhr, Vincent
AU  - Niebuhr V
AD  - MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, 
      Germany.
LA  - eng
PT  - Journal Article
DEP - 20190616
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
SB  - IM
OTO - NOTNLM
OT  - Fourier transform infrared spectroscopy (FTIRS)
OT  - LDPE
OT  - PET
OT  - Partial least squares regression (PLSR) modeling
EDAT- 2019/07/06 06:00
MHDA- 2019/07/06 06:01
CRDT- 2019/07/06 06:00
PHST- 2019/02/08 00:00 [received]
PHST- 2019/06/11 00:00 [revised]
PHST- 2019/06/15 00:00 [accepted]
PHST- 2019/07/06 06:00 [pubmed]
PHST- 2019/07/06 06:01 [medline]
PHST- 2019/07/06 06:00 [entrez]
AID - S0048-9697(19)32800-1 [pii]
AID - 10.1016/j.scitotenv.2019.06.227 [doi]
PST - ppublish
SO  - Sci Total Environ. 2019 Nov 1;689:341-346. doi: 10.1016/j.scitotenv.2019.06.227. 
      Epub 2019 Jun 16.