PMID- 18393539
OWN - NLM
STAT- MEDLINE
DCOM- 20080520
LR  - 20161124
IS  - 1520-6882 (Electronic)
IS  - 0003-2700 (Linking)
VI  - 80
IP  - 9
DP  - 2008 May 1
TI  - Feasibility of analyzing fine particulate matter in air using solid-phase 
      extraction membranes and dynamic subcritical water extraction.
PG  - 3159-67
LID - 10.1021/ac7021458 [doi]
AB  - We have evaluated the feasibility of using Empore solid-phase extraction (SPE) 
      membranes as an alternative to conventional techniques for sampling fine airborne 
      particulate matter (PM), including nanoparticles, utilizing a scanning mobility 
      particle sizer (SMPS) and a condensation particle counter to evaluate their 
      efficiency for trapping fine particles in the 10-800 nm size range. The results 
      demonstrate that the membranes can efficiently trap these particles and can then 
      be conveniently packed into an extraction cell and extracted under matrix 
      solid-phase dispersion (MSPD) conditions. The potential utility of sampling PM 
      using Empore membranes followed by dynamic subcritical water extraction (DSWE) 
      for fast, efficient, class-selective extraction of polycyclic aromatic 
      hydrocarbons (PAHs) associated with the particles, prior to changing the solvent 
      and analysis by GC/MS, was then explored. The performance of the method was 
      tested using National Institute of Standards and Technology (NIST)-certified 
      "urban dust" reference material (SRM 1649a) and real samples collected at a site 
      in central Rome with heavy road traffic. The method appears to provide comparable 
      extraction efficiency to that of conventional techniques and with using GC/MS, 
      detection limits ranged in the few picograms per cubic meter level. Sampling PM 
      by Empore membranes may reduce the risks of losses of semivolatile compounds, 
      while allowing relatively high sampling flow rates and safe sample storage. 
      Moreover, the combination of MSPD with DSWE permits specific fractions of the PM 
      components to be eluted, thereby generating clean extracts and reducing both 
      analysis time and sample manipulation.
FAU - Tollback, Johanna
AU  - Tollback J
AD  - Department of Analytical Chemistry, Stockholm University, Stockholm, S-106 91, 
      Sweden.
FAU - Bigata, Maria Blasco
AU  - Bigata MB
FAU - Crescenzi, Carlo
AU  - Crescenzi C
FAU - Strom, Johan
AU  - Strom J
LA  - eng
PT  - Journal Article
DEP - 20080408
PL  - United States
TA  - Anal Chem
JT  - Analytical chemistry
JID - 0370536
RN  - 0 (Membranes, Artificial)
RN  - 0 (Particulate Matter)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Feasibility Studies
MH  - Filtration/instrumentation/*methods
MH  - Gas Chromatography-Mass Spectrometry
MH  - *Membranes, Artificial
MH  - Nanoparticles/*analysis/chemistry
MH  - Particle Size
MH  - Particulate Matter/analysis/chemistry/*isolation & purification
MH  - Polycyclic Aromatic Hydrocarbons/analysis/chemistry/*isolation & purification
MH  - Temperature
MH  - Water/*chemistry
EDAT- 2008/04/09 09:00
MHDA- 2008/05/21 09:00
CRDT- 2008/04/09 09:00
PHST- 2008/04/09 09:00 [pubmed]
PHST- 2008/05/21 09:00 [medline]
PHST- 2008/04/09 09:00 [entrez]
AID - 10.1021/ac7021458 [doi]
PST - ppublish
SO  - Anal Chem. 2008 May 1;80(9):3159-67. doi: 10.1021/ac7021458. Epub 2008 Apr 8.