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Clark et. al. 2003 USGS Open File Report 03-395
Spectral Library splib05a Sample Description

(For further information on spectrsocopy, see: http://speclab.cr.usgs.gov)

TITLE: Plastic_PETE GDS379 TrnslBrn DESCRIPT

DOCUMENTATION_FORMAT: Man Made

SAMPLE_ID: GDS379

MATERIAL_TYPE: Plastic

MATERIAL: Plastic PETE, Polyethylene terephthalate

FORMULA: CH4 compound

FORMULA_HTML: CH4 compound

COLLECTION_LOCALITY: Grocery Store

ORIGINAL_DONOR: Gregg Swayze

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Translucent dark brown PETE Plastic from a pop bottle. Sample is 1 mm thick.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

Spectrum has a broad absorption in the visible centered near 0.48 microns with a reflectance peak at 0.612 microns. There is an additional band at 0.66 microns before the absorption edge. The spectrum is flat from 0.8 microns to 1.0 microns. A series of complex absorptions dominate the spectrum from this point out to 2.5 microns. The 1.7 micron C-H stretch absorptions and 2.3 micron C-H combination bands are strong in this sample. There is also a complex of four absorptions centered near 2.15 microns.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

LIB_SPECTRA_HED: where Wave Range Av_Rs_Pwr Comment
LIB_SPECTRA: splib05a r 10299 0.2-3.0µm 200 g.s.=


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