PMID- 11768471
OWN - NLM
STAT- MEDLINE
DCOM- 20020115
LR  - 20191025
IS  - 0937-0633 (Print)
IS  - 0937-0633 (Linking)
VI  - 371
IP  - 6
DP  - 2001 Nov
TI  - Partitioning of polycyclic aromatic hydrocarbons in the polyethylene/water 
      system.
PG  - 816-22
AB  - The suitability of polyethylene sheets as passive samplers of lipophilic 
      contaminants in water bodies was tested. High-density polyethylene (HDPE) and 
      low-density polyethylene (LDPE) sheets were contaminated with PAH. Uncontaminated 
      and pre-contaminated sheets were deployed simultaneously and collected at 
      intervals over 32 days. The exposed sheets and water samples were analyzed for 
      PAH. The initial PAH concentrations in the contaminated and uncontaminated sheets 
      differed by two to three orders of magnitude, but approached a common equilibrium 
      concentration during exposure. The two- to four-ring PAH achieved 
      quasi-equilibrium within the 32-day exposure period, whereas the five- and 
      six-ring PAH did not. The estimated PE/water partition coefficients were 
      approximately three times higher for HDPE than for LDPE, and they were similar in 
      magnitude to the K(ow) values (the partition coefficients between n-octanol and 
      water). The uptake rate constants were approximately four times higher for HDPE 
      than LDPE, which was attributed to the four times higher specific surface area. 
      The uptake and elimination in HDPE followed linear first-order kinetics, whereas 
      for LDPE very slow elimination rates were observed that could not be explained. 
      The results show that PE is a simple, effective, and inexpensive material for 
      sampling trace organic contaminants in water.
FAU - Muller, J F
AU  - Muller JF
AD  - National Research Center for Environmental Toxicology, Coopers Plains Qld, 
      Australia.
FAU - Manomanii, K
AU  - Manomanii K
FAU - Mortimer, M R
AU  - Mortimer MR
FAU - McLachlan, M S
AU  - McLachlan MS
LA  - eng
PT  - Journal Article
PL  - Germany
TA  - Fresenius J Anal Chem
JT  - Fresenius' journal of analytical chemistry
JID - 9114077
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Polyethylenes)
RN  - 0 (Soil Pollutants)
RN  - 0 (Water Pollutants, Chemical)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Algorithms
MH  - Australia
MH  - Chemical Phenomena
MH  - Chemistry, Physical
MH  - Polycyclic Aromatic Hydrocarbons/*analysis
MH  - Polyethylenes/*chemistry
MH  - Soil Pollutants/analysis
MH  - Solubility
MH  - Specimen Handling
MH  - Water/chemistry
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2002/01/05 10:00
MHDA- 2002/01/16 10:01
CRDT- 2002/01/05 10:00
PHST- 2002/01/05 10:00 [pubmed]
PHST- 2002/01/16 10:01 [medline]
PHST- 2002/01/05 10:00 [entrez]
AID - 10.1007/s002160101025 [doi]
PST - ppublish
SO  - Fresenius J Anal Chem. 2001 Nov;371(6):816-22. doi: 10.1007/s002160101025.