PMID- 17165536
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100608
LR  - 20161018
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 24
IP  - 5
DP  - 2006 Sep
TI  - [Microstructural characterization for pyrolysis hydrogenation fragments in 
      polyethylene by pyrolysis hydrogenation gas chromatography/mass spectrometry].
PG  - 451-5
AB  - The microstructural characterization of 47 samples, respectively of high density 
      polyethylene (HDPE), low density polyethylene (LDPE), linear low density 
      polyethylene (LLDPE), copolymer of ethylene and alpha-olefins, was performed by 
      pyrolysis hydrogenation gas chromatography/mass spectrometry (Py-H-GC/MS) with 
      10% Pt on 80-100 mesh Diasolid H as a hydrogenation catalyst. The samples were 
      obtained from 12 domestic plants and 12 plants abroad as well. The sample sizes 
      ranging from 30 to 80 microg were pyrolyzed at 770 degrees C in a flow of 
      hydrogen carrier gas. It was found that short methyl branches as the 
      characteristic isoalkanes of pyrolysis hydrogenation in polyethylene would be 
      related closely to the different classes of polyethylene. The microstructural 
      characterization has been carried out by means of Py-H-GC/MS, according to the 
      relative amount of the four short methyl branches, 5-methyldodecane (5-MC12), 
      4-methyldodecane (4-MC12), 2-methyldodecane (2-MC12) and 3-methyldodecane 
      (3-MC12) existed in C12-C13 isoalkanes. The Py-H-GC/MS technique will be 
      providing further scientific evidences for the characterization of polyethylene 
      plastics in forensic science.
FAU - Ding, Junkai
AU  - Ding J
AD  - Liaoning Criminal Science and Technology Institute, Shenyang 110032, China. 
      jk_ding@126.com
FAU - Song, Ming
AU  - Song M
FAU - Huang, Li
AU  - Huang L
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2006/12/15 09:00
MHDA- 2006/12/15 09:01
CRDT- 2006/12/15 09:00
PHST- 2006/12/15 09:00 [pubmed]
PHST- 2006/12/15 09:01 [medline]
PHST- 2006/12/15 09:00 [entrez]
PST - ppublish
SO  - Se Pu. 2006 Sep;24(5):451-5.